2020

• Birkel H., Hartmann E.:
  Internet of Things – the future of managing supply chain risks
  In: Supply Chain Management-An International Journal (2020)
  ISSN: 1359-8546
  DOI: 10.1108/SCM-09-2019-0356
• Meyer T., von der Gracht HA., Hartmann E.:
  How Organizations Prepare for the Future: A Comparative Study of Firm Size and Industry
  In: IEEE Transactions on Engineering Management (2020)
  ISSN: 0018-9391
  DOI: 10.1109/TEM.2020.2992539

2019

• Birkel H., Hartmann E.:
  Defusing the Supply Chain: How the Application of IoT Changes SCRM
  In: Academy of Management Proceedings 2019 (2019), S. 15176
  ISSN: 0065-0668
  DOI: 10.5465/AMBPP.2019.15176abstract
• Birkel H., Hartmann E.:
  Impact of IoT challenges and risks for SCM
  In: Supply Chain Management-An International Journal (2019)
  ISSN: 1359-8546
  DOI: 10.1108/SCM-03-2018-0142
• Birkel H., Veile J., Müller J., Hartmann E., Voigt KI.:
  Development of a Risk Framework for Industry 4.0 in the Context of Sustainability for Established Manufacturers
  In: Sustainability 11 (2019), S. 384
  ISSN: 2071-1050
  DOI: 10.3390/su11020384
  URL: https://www.mdpi.com/2071-1050/11/2/384
• Lechler S., Canzaniello A., Hartmann E.:
  Assessment sharing intra-industry strategic alliances: Effects on sustainable supplier management within multi-tier supply chains
  In: International Journal of Production Economics 217 (2019), S. 64-77
  ISSN: 0925-5273
  DOI: 10.1016/j.ijpe.2019.01.005
• Lechler S., Canzaniello A., Roßmann B., von der Gracht HA., Hartmann E.:
  Real-time data processing in supply chain management: revealing the uncertainty dilemma
  In: International Journal of Physical Distribution & Logistics Management (2019)
  ISSN: 0960-0035
  DOI: 10.1108/IJPDLM-12-2017-0398
• Lechler S., Canzaniello A., Wetzstein A., Hartmann E.:
  Influence of different stakeholders on first-tier suppliers’ sustainable supplier selection: insights from a multiple case study in the automotive first-tier industry
  In: Business Research (2019)
  ISSN: 2198-3402
  DOI: 10.1007/s40685-019-00103-y
• Meyer T., Kuhn M., Hartmann E.:
  Blockchain technology enabling the Physical Internet: A synergetic application framework
  In: Computers & Industrial Engineering 136 (2019), S. 5-17
  ISSN: 0360-8352
  DOI: 10.1016/j.cie.2019.07.006
• Sturm S., Kaiser G., Hartmann E.:
  Long-run dynamics between cost of quality and quality performance
  In: International Journal of Quality and Reliability Management (2019)
  ISSN: 0265-671X
  DOI: 10.1108/IJQRM-05-2018-0118

2018

• Maas S., Schuster T., Hartmann E.:
  Stakeholder pressures, environmental practice adoption and economic performance in the German third-party logistics industry : a contingency perspective
  In: Journal of Business Economics 2 (2018), S. 167-201
  ISSN: 0044-2372
• Roßmann B., Canzaniello A., von der Gracht H., Hartmann E.:
  The future and social impact of Big Data Analytics in Supply Chain Management: Results from a Delphi study
  In: Technological Forecasting and Social Change 130 (2018), S. 135-149
  ISSN: 0040-1625
  DOI: 10.1016/j.techfore.2017.10.005
• Srivastava M., Moser R., Hartmann E.:
  The networking behavior of Indian executives under environmental uncertainty abroad: An exploratory analysis
  In: Journal of Business Research 82 (2018), S. 230-245
  ISSN: 0148-2963
  DOI: 10.1016/j.jbusres.2017.09.036
  URL: http://www.sciencedirect.com/science/article/pii/S0148296317303545
• Wetzstein A., Feisel E., Hartmann E., Benton jr. W.:
  Uncovering the Supplier Selection Knowledge Structure: A systematic citation network analysis from 1991 to 2017
  In: Journal of Purchasing and Supply Management (2018)
  ISSN: 1478-4092
  DOI: 10.1016/j.pursup.2018.10.002

2017

• Canzaniello A., Fifka M., Hartmann E.:
  Intra-industry strategic alliances for managing sustainability-related supplier risks: Motivation and outcome.
  In: International Journal of Physical Distribution & Logistics Management 47 (2017), S. 387-409
  ISSN: 0960-0035
  DOI: 10.1108/IJPDLM-01-2016-0034

2016

• Liebl J., Hartmann E., Feisel E.:
  Reverse factoring in the supply chain: objectives, antecedents and implementation barriers
  In: International Journal of Physical Distribution & Logistics Management 46 (2016), S. 393 - 413
  ISSN: 0960-0035
  DOI: 10.1108/IJPDLM-08-2014-0171
• Plewa M., Kaiser G., Hartmann E.:
  Is quality still free?: Empirical evidence on quality cost in modern manufacturing
  In: International Journal of Quality and Reliability Management 33 (2016), S. 1270 - 1285
  ISSN: 0265-671X
  DOI: 10.1108/IJQRM-11-2014-0189
• Wetzstein A., Hartmann E., Benton jr. W., Hohenstein NO.:
  A systematic assessment of supplier selection literature–State-of-the-art and future scope
  In: International Journal of Production Economics 182 (2016), S. 304 - 323
  ISSN: 0925-5273

2015

• Foerstl K., Azadegan A., Leppelt T., Hartmann E.:
  Drivers of supplier sustainability: Moving beyond compliance to commitment
  In: Journal of Supply Chain Management 51(1) (2015)
  ISSN: 1523-2409
• Hartmann E., Herb S.:
  Interconnectedness of actor bonds in service triads – a social capital perspective
  In: Industrial Marketing Management 44 (2015), S. 154-165
  ISSN: 0019-8501
• Herrmann S., Rogers H., Gebhard M., Hartmann E.:
  Co-creating value in the automotive supply chain: an RFID application for processing finished vehicles
  In: Production Planning & Control 26 (2015), S. 981 - 993
  ISSN: 0953-7287
  DOI: 10.1080/09537287.2014.1002023
• Hirschinger M., Moser R., Hartmann E.:
  Truck Sharing: Keine Laster - keine Hilfe
  In: Wirtschaftswissenschaftliches Studium 44 (2015), S. 17 - 23
  ISSN: 0340-1650
• Hirschinger M., Moser R., Schaefers T., Hartmann E.:
  No Vehicle Means No Aid—A Paradigm Change for the Humanitarian Logistics Business Model
  In: Thunderbird International Business Review (2015)
  ISSN: 1096-4762
• Hirschinger M., Spickermann A., Hartmann E., von der Gracht H., Darkow IL.:
  The Future of Logistics in Emerging Markets – Fuzzy Clustering Scenarios Grounded in Institutional and Factor-Market Rivalry Theory
  In: Journal of Supply Chain Management 51 (2015), S. 73 - 93
  ISSN: 1523-2409
• Hohenstein NO., Feisel E., Hartmann E., Giunipero L.:
  Research on the Phenomenon of Supply Chain Resilience: A Systematic Review and Paths for Further Investigation
  In: International Journal of Physical Distribution & Logistics Management 45 (1/2) (2015)
  ISSN: 0960-0035
• Plewa M., Kaiser G., Hartmann E., Feisel E.:
  Quality is free – New Empirical Evidence from Manufacturing
  In: Academy of Management Journal (2015)
  ISSN: 0001-4273
• Wetzstein A., Hohenstein NO., Hartmann E.:
  Understanding the Role of Supplier Selection in PSM Research – A Systematic Literature Review
  In: Academy of Management Journal (2015)
  ISSN: 0001-4273

2014

• De Rosa V., Hartmann E., Gebhard M., Wollenweber J.:
  Robust capacitated facility location model for acquisitions under uncertainty
  In: Computers & Industrial Engineering 72 (2014), S. 206-216
  ISSN: 0360-8352
• Herb S., Hartmann E.:
  Opportunism Risk in Service Triads: A Social Capital Perspective
  In: International Journal of Physical Distribution & Logistics Management (2014), S. forthcoming
  ISSN: 0960-0035
• Hohenstein NO., Feisel E., Hartmann E.:
  Human Resource Management Issues in Supply Chain Management Research: A Systematic Literature Review from 1998 to 2014
  In: International Journal of Physical Distribution & Logistics Management 44 (2014), S. 434-463
  ISSN: 0960-0035
• Maas S., Herb S., Hartmann E.:
  Supply Chain Services from a Service-dominant Perspective: A Content Analysis
  In: International Journal of Physical Distribution & Logistics Management 44 (2014), S. 58-79
  ISSN: 0960-0035
• Maas S., Schuster T., Hartmann E.:
  Pollution Prevention and Service Stewardship Strategies in the Third-Party Logistics Industry: Effects on Firm Differentation and the Moderating Role of Environmental Communication
  In: Business Strategy and the Environment 23 (2014), S. 38 - 55
  ISSN: 0964-4733
  DOI: 10.1002/bse.1759

2013

• De Rosa V., Gebhard M., Hartmann E., Wollenweber J.:
  Robust sustainable bi-directional logistics network design under uncertainty
  In: International Journal of Production Economics 145 (2013), S. 184-198
  ISSN: 0925-5273
• Foerstl K., Hartmann E., Wynstra F., Moser R.:
  Cross-Functional Integration and Functional Coordination in Purchasing and Supply Management: Antecedents and Effects on Purchasing and Firm Performance
  In: International Journal of Operations & Production Management 33 (2013), S. 689-721
  ISSN: 0144-3577
  DOI: 10.1108/IJOPM-09-2011-0349
• Leppelt T., Foerstl K., Hartmann E.:
  Corporate Social Responsibility in Buyer-Supplier Relationships: Is it Beneficial for Top-Tier Suppliers to Market their Capability to Ensure a Responsible Supply Chain?
  In: Business Research 6 (2013), S. 126-152
  ISSN: 2198-3402
• Stanger S., Wilding R., Yates N., Cotton S., Hartmann E.:
  Lateral transshipments: An institutional theory perspective
  In: International Journal of Physical Distribution & Logistics Management 43 (2013), S. 747-767
  ISSN: 0960-0035
  DOI: 10.1108/IJPDLM-09-2011-0155

2012

• Hartmann E., Feisel E., Schober H.:
  Talent management of Western MNCs in China: Balancing global integration and local responsiveness
  In: Journal of World Business 45 (2012), S. 169 - 178
  ISSN: 1090-9516
  DOI: 10.1016/j.jwb.2009.09.013
• Hartmann E., Kerkfeld D.:
  Maximizing impact of investments into purchasing and supply management
  In: International Journal of Physical Distribution & Logistics Management 42 (2012), S. 464-489
  ISSN: 0960-0035
• Hartmann E., Kerkfeld D., Henke M.:
  Top and bottom line relevance of purchasing and supply management
  In: Journal of Purchasing and Supply Management 18 (2012), S. 22-34
  ISSN: 1478-4092
  DOI: 10.1016/j.pursup.2011.12.001
• Kern D., Moser R., Hartmann E., Moder M.:
  Supply Risk Management: Model Development and Empirical Analysis
  In: International Journal of Physical Distribution & Logistics Management 42 (2012), S. 60-82
  ISSN: 0960-0035
  DOI: 10.1108/09600031211202472

2011

• Feisel E., Hartmann E., Giunipero L.:
  The importance of the human aspect in the supply function: Strategies for developing PSM proficiency
  In: Journal of Purchasing and Supply Management 17 (2011), S. 54-67
  ISSN: 1478-4092
  DOI: 10.1016/j.pursup.2010.07.001
• Hartmann E., Grahl A.:
  The Flexibility of Logistics Service Providers and its Impact on Customer Loyalty ­ An Empirical Study
  In: Journal of Supply Chain Management 47 (2011), S. 64-86
  ISSN: 1523-2409
  DOI: 10.1111/j.1745-493X.2011.03228.x
• Kern D., Moser R., Sundaresan N., Hartmann E.:
  Purchasing Competence: A Stakeholder-Based Framework for Chief Purchasing Officers
  In: Journal of Business Logistics 32 (2011), S. 122-138
  ISSN: 0735-3766
• Leppelt T., Foerstl K., Reuter C., Hartmann E.:
  Sustainability management beyond organizational boundaries-sustainable supplier relationship management in the chemical industry
  In: Journal of Cleaner Production (2011), S. 1-9
  ISSN: 0959-6526
  DOI: 10.1016/j.jclepro.2011.10.011
• Moser R., Kern D., Wohlfarth S., Hartmann E.:
  Supply Network Configuration Benchmarking: Framework Development and Application in the Indian Automotive Industry
  In: Benchmarking 18 (2011)
  ISSN: 1463-5771
  DOI: 10.1108/14635771111180707

2010

• Foerstl K., Reuter C., Hartmann E., Blome C.:
  Managing supplier sustainability risks in a dynamically changing environment—Sustainable supplier management in the chemical industry
  In: Journal of Purchasing and Supply Management 16 (2010), S. 118-130
  ISSN: 1478-4092
  DOI: 10.1016/j.pursup.2010.03.011
• Reuter C., Förstl K., Hartmann E., Blome C.:
  Sustainable Global Supplier Management – The Role of Dynamic Capabilities in Achieving Competitive Advantage
  In: Journal of Supply Chain Management 46 (2010), S. 45 - 63
  ISSN: 1523-2409
• Tate WL., Ellram LM., Bals L., Hartmann E., van der Valk W.:
  An Agency Theory Perspective on the Purchase of Marketing Services
  In: Industrial Marketing Management 39 (2010), S. 806 - 819
  ISSN: 0019-8501
  DOI: 10.1016/j.indmarman.2009.08.005

2009

• Bals L., Hartmann E., Ritter T.:
  Barriers of purchasing departments' involvement in marketing service procurement
  In: Industrial Marketing Management 38 (2009), S. 892-902
  ISSN: 0019-8501
  DOI: 10.1016/j.indmarman.2009.06.010
• Foerstl K., Reuter C., Hartmann E.:
  Grün und sozial einkaufen: Nur so tun, als ob?
  In: Beschaffung aktuell 9 (2009), S. 22-24
  ISSN: 0341-4507
• Schmidberger S., Bals L., Hartmann E., Jahn C.:
  Ground handling services at European hub airports: Development of a performance measurement system for benchmarking
  In: International Journal of Production Economics 117 (2009), S. 104-116
  ISSN: 0925-5273
  DOI: 10.1016/j.ijpe.2008.10.006
• Tate WL., Ellram LM., Bals L., Hartmann E.:
  Offshore outsourcing of services: An evolutionary perspective
  In: International Journal of Production Economics 120 (2009), S. 512-524
  ISSN: 0925-5273
  DOI: 10.1016/j.ijpe.2009.04.005
• Trautmann G., Bals L., Hartmann E.:
  Global sourcing in integrated network structures: The case of hybrid purchasing organizations
  In: Journal of International Management 15 (2009), S. 194-208
  ISSN: 1075-4253
  DOI: 10.1016/j.intman.2008.09.001
• Trautmann G., Turkulainen V., Hartmann E., Bals L.:
  Integration in the global sourcing organization--an information processing perspective
  In: Journal of Supply Chain Management 45 (2009), S. 57-74
  ISSN: 1523-2409

2008

• Baier C., Hartmann E., Moser R.:
  Strategic alignment and purchasing efficacy: an exploratory analysis of their impact on financial performance
  In: Journal of Supply Chain Management 44 (2008), S. 36-52
  ISSN: 1523-2409
  DOI: 10.1111/j.1745-493X.2008.00071.x
• Feisel E., Hartmann E., Schober H., Schneppensiefer M.:
  Tabula rasa oder ein Platz zum Lernen?
  In: Beschaffung aktuell 12 (2008), S. 26-298
  ISSN: 0341-4507
• Hartmann E.:
  Power & Reach: Die Macht der Einkäufer
  In: Beschaffung aktuell 6 (2008), S. 24-25
  ISSN: 0341-4507
• Hartmann E., Bals L., Kaiser G.:
  The Impact of Internal Purchasing Resources and Capabilities on Low-Cost Country Sourcing
  In: Zeitschrift für Betriebswirtschaft (Spezial Issue) 78 (2008), S. 31-54
  ISSN: 0044-2372
• Hartmann E., Trautmann G., Jahns C.:
  Organisational design implications of global sourcing: A multiple case study analysis on the application of control mechanisms
  In: Journal of Purchasing and Supply Management 14 (2008), S. 28-42
  ISSN: 1478-4092
  DOI: 10.1016/j.pursup.2008.01.003
• Seidler‐de Alwis R., Hartmann E.:
  The use of tacit knowledge within innovative companies: knowledge management in innovative enterprises
  In: Journal of Knowledge Management 12 (2008), S. 133-147
  ISSN: 1367-3270
  DOI: 10.1108/13673270810852449
• Weigl T., Jahns C., Hartmann E., Darkow IL.:
  Inter-organizational network structures in Russia: organizational changes from institutional and social embeddedness perspectives
  In: Human Resource Development International 11 (2008), S. 151-165
  ISSN: 1367-8868
  DOI: 10.1080/13678860801932972

2007

• Feisel E., Hartmann E.:
  Talent Management im Einkauf (I)
  In: Beschaffung aktuell 9 (2007), S. 32-34
  ISSN: 0341-4507
• Hartmann E., Entchelmeier A., Henke M.:
  An Integrated Framework for Supply Performance Measurement
  In: Performance excellence - Zeitschrift für Controlling und Innovationsmanagement 2 (2007), S. 35-37
  ISSN: 1861-4957
• Hartmann E., Moser R., Weidmann M.:
  Innovationen fördern und gleichzeitig Kosten senken?
  In: Beschaffung aktuell 2 (2007), S. 23-25
  ISSN: 0341-4507
• Jahns C., Hartmann E.:
  Der Einkauf von Dienstleistungen im Visier der Kosten-Marshalls
  In: Beschaffung aktuell 1 (2007), S. 6-7
  ISSN: 0341-4507
• Jahns C., Hartmann E., Entchelmeier A.:
  Strategisches Supply Performance Measurement: Kostenbasierte Leistungsmessung in Einkauf und Supply Management
  In: Performance excellence - Zeitschrift für Controlling und Innovationsmanagement 51 (2007), S. 74-82
  ISSN: 1861-4957
• Jahns C., Hartmann E., Lockström M., Bals L.:
  The Quest for Competitive Advantage: Empirical Evidence of the Role of Resources in a Global Sourcing Context
  In: Die Unternehmung 61 (2007), S. 213-226
  ISSN: 0042-059X
• Jahns C., Hartmann E., Wagner A.:
  Überschätzte Zusammenarbeit
  In: Absatzwirtschaft : Zeitschrift für Marketing 3 (2007), S. 33-37
  ISSN: 0001-3374
• Moder M., Meyer P., Jahns C., Hartmann E.:
  Supply Frühwarnsysteme (II): Implementierung eines Supply Frühwarnsystems bei der Robert Bosch GmbH
  In: Beschaffung aktuell 1 (2007), S. 22-24
  ISSN: 0341-4507

2006

• Jahns C., Hartmann E., Bals L.:
  Offshoring: Determinants and Potentials of a New Business Concept
  In: Journal of Purchasing and Supply Management 12 (2006), S. 218-231
  ISSN: 1478-4092
• Jahns C., Hartmann E., Moder M.:
  Supply Frühwarnsysteme (I): Kritische Risiken im Supply Management frühzeitig erkennen
  In: Beschaffung aktuell 12 (2006), S. 26-28
  ISSN: 0341-4507
  URL: https://beschaffung-aktuell.industrie.de/allgemein/kritische-risiken-fruehzeitig-erkennen/
• Jahns C., Hartmann E., Reinhardt S.:
  Supply Key Account Management
  In: Beschaffung aktuell 11 (2006), S. 22-25
  ISSN: 0341-4507
• Jahns C., Hartmann E., Wagner A.:
  Marketingdienstleistungen - Unantastbare Kompetenz des Marketing? Ein Lagebericht zur Beschaffung von Marketingdienstleistungen, Teil 1
  In: Beschaffung aktuell 5 (2006)
  ISSN: 0341-4507

2004

• Hartmann E., Ritter T., Gemünden HG.:
  Determining the Purchase Situation: A Comprehensive View on Customer Behaviour
  In: Journal of Consumer Behaviour 3 (2004), S. 335-349
  ISSN: 1472-0817
  DOI: 10.1362/147539204323366426

2003

• Hartmann E., Salehi F., Vallerien S.:
  Operational focus: Sourcing in the Process Industries Fashionable Again?
  In: Chemical Market Reporter 10 (2003), S. 20
  ISSN: 1092-0110

2002

• Hartmann E., Bäumler M., Vallerien S.:
  Die Reserven liegen in der Produktion
  In: Chemie-Produktion 10 (2002), S. 14-15
  ISSN: 0945-8166
• Hartmann E., Ritter T., Gemünden HG.:
  The Fit Between Purchase Situations and B2B E-Marketplaces and its Impact on Relationship Success
  In: Journal of Consumer Behaviour 1 (2002), S. 395-414
  ISSN: 1472-0817
  DOI: 10.1362/147539202764441119

2001

• Hartmann E., Naujok N., Bäumler M., Neff P., Vallerien S.:
  Asset Management in Chemicals and Pharmaceuticals: The Value of Building Efficient Production Networks
  In: Chemical Market Reporter 11 (2001), S. 20-22
  ISSN: 1092-0110

2019

• Birkel H., Hartmann E.:
  Improving supply chain risk management: Implications for process transformation and global procurement markets via the Internet of Things
  In: Proceedings of the Annual International Purchasing & Supply Education & Research Association (IPSERA) Conference 2019
• Meyer T., Hartmann E.:
  The bumpy road to the adoption of the Physical Internet – Overcoming barriers from a stakeholder perspective
  6th International Physical Internet Conference (London, 9. Juli 2019 - 11. Juli 2019)
  In: 6th International Physical Internet Conference Proceedings 2019
• Voigt KI., Hartmann E., Rücker M., Veile J., Birkel H.:
  Risks of Industry 4.0 for Logistics - a Systematic Literature Review
  International Symposium on Logistics (ISL) (Würzburg, 14. Juli 2019 - 17. Juli 2019)

2017

• Roßmann B., Canzaniello A., von der Gracht H., Hartmann E.:
  Big data in supply chain management: A Delphi-based analysis
  Annual International Purchasing & Supply Education & Research Association (IPSERA) Conference
• Roßmann B., Canzaniello A., von der Gracht H., Hartmann E.:
  The Future of Big Data Analytics in Supply Chain Management: Results from a Delphi Study
  Academy of Management Annual Meeting (Atlanta, Georgia, 4. August 2017 - 8. August 2017)
  In: Academy of Management Proceedings 2017
  DOI: 10.5465/AMBPP.2017.12100abstract
• Roßmann B., Hartmann E., Moser R.:
  Understanding the role of perceived ownership in access-based services: Insights from an analysis of mobility service offerings
  VHB Tagung 2017

2016

• Liebl J., Hartmann E., Feisel E.:
  Supply chain operations value – a new way of measuring cost-performance relations
  DSI Annual Meeting 2016
• Liebl J., Plewa M., Hartmann E.:
  Trade credit, cost of capital and the role of buyer market power from an agency-theory perspective
  DSI Annual Meeting 2016

2011

• Clark K., Rättich G., Hartmann E.:
  Impact of institutional coordination on national entrepreneurship: A conceptual framework
  Academy of International Business Annual Meeting
• Rättich G., Clark K., Hartmann E.:
  Systematic Analysis of Early Internationalizing Firm Performance
  Academy of International Business Annual Meeting

2010

• Bals L., Berry H., Hartmann E., Rättich G.:
  Constituting dimensions of early internationalizing firms: Towards a common framework
• Bals L., Berry H., Hartmann E., Rättich G.:
  Early Internationalizing Firms: A Revised Framework
• Kerkfeld D., Hartmann E.:
  Context-dependency of Purchasing and Supply Management: An empirical Institutional Theory Approach
  70th Annual Meeting of the Academy of Management - Dare to Care: Passion and Compassion in Management Practice and Research, AOM 2010 (Montreal, QC, 6. August 2010 - 10. August 2010)
• Kern D., Hartmann E., Moser R., Moder M.:
  Upstream Supply Chain Risk Management: Model Development and Empirical Analysis
  Academy of Management Annual Meeting
• Kern D., Moser R., Hartmann E., Moder M.:
  Managing Supply Chain Risk - A Supply-Side Perspective
• Reinhardt S., Hartmann E., Kaiser G.:
  Internal Key Account Management in PSM - An Empirical Analysis
  Academy of Management Annual Meeting

2009

• Bals L., Berry H., Hartmann E.:
  What constitutes a born global firm?
  Academy of International Business Annual Meeting
• Foerstl K., Hartmann E., Wynstra F.:
  Cross-Functional Integration and Functional Coordination in Purchasing and Supply Management
  Academy of Management Annual Meeting
• Foerstl K., Hartmann E., Wynstra F., Moser R.:
  Integration and Coordination in Purchasing and Supply Management: Their Antecedence and Effects on Purchasing and Firm Performance
  71. Wissenschaftliche Jahrestagung des Verbandes der Hochschullehrer für Betriebswirtschaft e. V. (VHB)
• Reuter C., Foerstl K., Hartmann E., Blome C.:
  Achieving Competitive Advantage from Sustainable Supplier Management - Insights from the Chemical Industry
  International Purchasing & Supply Education & Research Association (IPSERA) Conference
• Schmidberger S., Bals L., Hartmann E., Jahns C.:
  Benchmarking Ground Handling Services at European Hub Airports
  International Purchasing & Supply Education & Research Association (IPSERA) Conference

2008

• Bals L., Hartmann E., Jahns C.:
  Purchasing Marketing Services: Optimization Issues and Priorities
  Herbsttagung der Wissenschaftlichen Kommission Produktionswirtschaft des Verbands der Hochschullehrer für Betriebswirtschaft e.V.
• Bals L., Hartmann E., Tate WL., Ellram LM.:
  Offshore Outsourcing of Services: Decision Making Insights Beyond the Pursuit of Low Costs
  19th North American Research/Teaching Symposium (NARS)
• Feisel E., Hartmann E., Jahns C.:
  Identifying and developing purchasing professionals for the future: A Longitudinal Case Study
  17th International Purchasing & Supply Education & Research Association (IPSERA)
• Feisel E., Hartmann E., Jahns C.:
  The impact of Human Resource Management (HRM) practices on purchasing skills and knowledge: A German Case Study
  19th North American Research/Teaching Symposium (NARS)
• Feisel E., Hartmann E., Schober H., Giunipero L.:
  Designing comprehensive purchasing training – A conceptual framework
  24th Industrial Marketing and Purchasing (IMP) conference
• Hartmann E., Bals L., Kaiser G.:
  An Empirical Study on Sourcing in Emerging Countries from the Resource-based View
  2008 Academy of Management Annual Meeting
• Hartmann E., Bals L., Kaiser G.:
  The Impact of Internal Purchasing Resources and Capabilities on Sourcing in Emerging Countries: A Resource-based View
  70. Wissenschaftliche Jahrestagung des Verbandes der Hochschullehrer für Betriebswirtschaft e.V. (VHB)
• Hartmann E., Foerstl K., Moser R.:
  The Link between Internal Purchasing and Supply Management (PSM) Practices, PSM Performance and Company Performance – Evidence from a Structural Equation Model
  24th Industrial Marketing and Purchasing (IMP) conference
• Hartmann E., Romero Pérez R.:
  Purchasing’s impact on postmerger performance: Effects of interaction with other business functions and suppliers
  24th Industrial Marketing and Purchasing (IMP) conference
• Reuter C., Hartmann E., Jahns C.:
  Supply Performance Measurement Systems:Viewed from an Information Processing Perspective
  17th International Purchasing & Supply Education & Research Association (IPSERA)
• Trautmann G., Bals L., Hartmann E.:
  Implementing Global Sourcing Through Purchasing Portfolio Management
  9th Annual International Business Research Forum

2007

• Bals L., Hartmann E.:
  Characterizing and measuring performance in purchasing marketing services
  16th International Purchasing & Supply Education & Research Association (IPSERA)
• Bals L., Hartmann E.:
  Implementing measures for performance improvement in purchasing marketing services – developing a step-wise approach
  18th North American Research/Teaching Symposium (NARS)
• Bals L., Hartmann E., Ritter T.:
  Barriers to interaction and collaboration of marketing and purchasing functions
  IPSERA German Node Conference
• Bals L., Hartmann E., Ritter T.:
  Marketing as an internal client of purchasing – Exploring meaningful Marketing/Purchasing interaction
  23rd Industrial Marketing and Purchasing (IMP) conference
• Bals L., van der Valk W., Wynstra F., Hartmann E.:
  Purchasing marketing services: Aligning purchasing and marketing to improve agency performance
  16th International Purchasing & Supply Education & Research Association (IPSERA)
• Feisel E., Hartmann E., Schober H.:
  Improved Purchasing Performance through Measurement and Development of Purchasing Skills
  23rd Industrial Marketing and Purchasing (IMP) conference
• Hartmann E., Bals L., Gruner JR.:
  Management of the Innovation Process: A Comparison of Theoretical and Practical Approaches
  Herbsttagung der Wissenschaftlichen Kommission Produktionswirtschaft des Verbands der Hochschullehrer für Betriebswirtschaft e.V. 2007
• Hartmann E., Bals L., Trautmann G.:
  Supply Strategies and the Supply Strategy Portfolio - Case Study
  Proceedings of the 12th International Federation of Purchasing & Supply Management (IFPSM) Summer School 2006
  In: Proceedings of the 12th International Federation of Purchasing & Supply Management (IFPSM) Summer School 2006 2007
• Hartmann E., Jahns C., Trautmann G.:
  Global Purchasing Organizations: Towards Integrated Networks
  18th North American Research/Teaching Symposium (NARS)
• Hartmann E., Jahns C., Trautmann G.:
  Global Sourcing Organization
  69. Wissenschaftliche Jahrestagung des Verbandes der Hochschullehrer für Betriebswirtschaft e.V. (VHB)
• Hartmann E., Jahns C., Trautmann G.:
  Organizational Implications of Global Sourcing
  16th International Purchasing & Supply Education & Research Association (IPSERA)
• Hartmann E., Trautmann G., Turkulainen V.:
  Integration in Hybrid Global Sourcing Organizations
  18th Annual Conference of the Production and Operations Management Society (POMS)
• Jahns C., Hartmann E., Schmidberger S.:
  Development of a performance measurement system for the benchmarking of ground handling services at European hub airports
  12th International Symposium on Logistics (ISL)
• Jahns C., Moser R., Hartmann E., Lockström M.:
  Rent-based Supplier Management Behavior - An Explorative Study -
  18th North American Research/Teaching Symposium (NARS)
• Reinhardt S., Hartmann E., Jahns C.:
  Internal Customer Orientation in Purchasing & Supply Management - Learning from Key Account Management -
  23rd Industrial Marketing and Purchasing (IMP) conference
• Tate WL., Ellram LM., Hartmann E., Bals L.:
  The Evolution of Offshore Outsourcing of Services: A Theoretical Perspective
  38th Decision Sciences Institute Annual Meeting

2006

• Bals L., Hartmann E., Jahns C.:
  Purchasing Advertising Services – Analysis of the Purchasing Process and the Implications on Category Management
  22nd Industrial Marketing and Purchasing (IMP) conference
• Entchelmeier A., Hartmann E., Henke M.:
  Supply Risk Assessment: A Utility Value Based Concept
  22nd Industrial Marketing and Purchasing (IMP) conference
• Hartmann E.:
  Einkauf von Marketingdienstleistungen: Entwicklung eines integrierten Ansatzes zum Management von Effizienz und Effektivität im Marketing Spend Management
  VHB - WK Produktionswirtschaft Nachwuchstagung
• Jahns C., Hartmann E., Entchelmeier A.:
  Supply Controlling: Ausbildung einer eigenständigen Führungsunterstützungsfunktion für Einkauf und Supply Management
  Herbsttagung der Wissenschaftlichen Kommission Produktionswirtschaft des Verbands der Hochschullehrer für Betriebswirtschaft e.V. 2006
• Jahns C., Hartmann E., Entchelmeier A.:
  Supply Performance Mearsurement: Towards an Integrated Framework
  15th International Purchasing & Supply Education & Research Association (IPSERA)/17th North American Research/Teaching Symposium (NARS)
• Jahns C., Hartmann E., Lockström M.:
  Sourcing in Emerging and Transition Economies: A Resource-Based View on Performance Implications
  15th International Purchasing & Supply Education & Research Association (IPSERA)/17th North American Research/Teaching Symposium (NARS)
• Jahns C., Hartmann E., Löckström M.:
  The Quest for Competitive Advantage: Empirical Evidence of the Role of Resources in a Global Sourcing Context
  68. Wissenschaftliche Jahrestagung des Verbandes der Hochschullehrer für Betriebswirtschaft e.V. (VHB)
• Jahns C., Hartmann E., Moder M.:
  Frühwarnsysteme im Supply Management: Notwendigkeit, Konzepte und praktische Umsetzung
  12. Magdeburger Logistiktagung
• Jahns C., Hartmann E., Moder M.:
  The Relevance of Supply Early Warning Systems: A Survey on Its Performance Implications
  Hamburg International Conference of Logistics (HICL)
• Jahns C., Hartmann E., Moser R.:
  The Influence of Specific Behaviours Towards Strategic Suppliers on Purchasing and Supply Management and Company Performance: An Empirical Study based on Partial Least Square (PLS) Analysis
  11th International Symposium on Logistics (ISL)
• Jahns C., Hartmann E., Moser R.:
  The Influence of Strategy-driven Selection Priorities for Strategic Suppliers on Purchasing and Supply management and Company, Performance
  15th International Purchasing & Supply Education & Research Association (IPSERA)/17th North American Research/Teaching Symposium (NARS)
• Jahns C., Hartmann E., Widiarta H., Moser R., Stolle M., Reinecke N.:
  Excellence in Purchasing & Supply Management: An empirical study on the impact of purchasing & supply management (PSM) practices on PSM and company performance
  15th International Purchasing & Supply Education & Research Association (IPSERA)/17th North American Research/Teaching Symposium (NARS)
• Moser R., Hartmann E., Jahns C.:
  The influence of specific behaviors towards strategic supply network partners on purchasing & supply management performance
  22nd Industrial Marketing and Purchasing (IMP) conference
• Weigl T., Hartmann E., Darkow IL.:
  Inter-organizational network structures in Russia - An institution-based and social-embeddedness view, Organisational Change and Development in Transitional Countries
  The European Institute for Advanced Studies in Management (EIASM)

2005

• Hartmann E., Schmidberger S., Gaida B.:
  Benchmarking of Ground Handling Services at Major Airports
  German Aviation Research Society (GARS)
• Jahns C., Hartmann E., Lockström M.:
  Performance implications of low-cost country sourcing: an empirical investigation
  1st International Conference on Operations and Supply Chain Management
• Siedler-de Alwis R., Hartmann E.:
  The use of tacit knowledge within innovative companies
  31st European International Business Academy (EIBA) conference

2004

• Seidler‐de Alwis R., Hartmann E., Gemünden HG.:
  The Role of Tacit Knowledge in Innovation Management
  20th Industrial Marketing and Purchasing (IMP) conference
• Seidler‐de Alwis R., Hartmann E., Gemünden HG.:
  The Significance of Tacit Knowledge on Company’s Innovation Capability
  9th International Sympsium for Information Science (ISI)

2002

• Hartmann E., Ritter T., Gemünden HG.:
  Relationship Success Through The Appropriate Fit Between Purchase Situation and B2B E-Marketplace
  31st European Marketing Conference EMAC
• Hartmann E., Ritter T., Gemünden HG.:
  The Fit between Purchase Situation and B2B E-Marketplaces and Its Impact on Relationship Success
  18th Industrial Marketing and Purchasing (IMP) conference

2001

• Hartmann E., Ritter T., Gemünden HG.:
  Determining the Purchase Situation: Cornerstone of Supplier Relationship Management
  17th Industrial Marketing and Purchasing (IMP) conference
• Oppel K., Hartmann E., Lingenfelder M., Gemünden HG.:
  Electronic B2B Marketplaces – Impact on B2B Transactions and Relationships?
  17th Industrial Marketing and Purchasing (IMP) conference

2014

• Rogers H., Abd El Hakam T., Hartmann E., Gebhard M.:
  RFID in Retail Supply Chains: Current Developments and Future Potential
  Springer Verlag, 2014
  (Logistics Management: Products, Actors, Technology)
  ISBN: 978-3-319-13176-4
  DOI: 10.1007/978-3-319-13177-1_16

2007

• Hartmann E., Bals L.:
  Einkauf von Marketingdienstleistungen: Focus Study Report
  Sternenfels: Wissenschaft & Praxis; Smg Publishing, 2007
  ISBN: 978-3896733511

2006

• Jahns C., Darkow IL., Hartmann E., Schober H., Walter S.:
  Einkauf und Supply Management. Highlights and Hot Spots
  Sternenfels: Wissenschaft & Praxis, 2006
• Jahns C., Darkow IL., Hartmann E., Schober H., Walter S.:
  Logistics & Supply Chain Management. Highlights and Hot Spots
  Sternenfels: Wissenschaft & Praxis, 2006

2005

• Jahns C., Hartmann E., Lockström M.:
  Globale Spend Management Studie: Europäische Strategien für Low-Cost Country Sourcing
  Sternenfels: Wissenschaft & Praxis, 2005
• Jahns C., Hartmann E., Lockström M.:
  Global Spend Management Survey: European Strategies for Low Cost Country Sourcing
  Sternenfels: Wissenschaft & Praxis, 2005
• Jahns C., Hartmann E., Wagner A.:
  Marketing Spend Survey
  Sternenfels: Wissenschaft & Praxis, 2005

2013

• Bals L., Berry H., Hartmann E., Rättich G.:
  What Do We Know About Going Global Early? Liabilities of Foreignness and Early Internationalizing Firms
  In: Devinney T., Pedersen T., Tihanyi L. (Hrsg.): Advances in International Management, JAI Press, 2013, S. 397-433
  DOI: 10.1108/S1571-5027(2013)0000026020

2011

• Rättich G., Clark K., Hartmann E.:
  Performance Measurement and Antecedents of Early Internationalizing Firms: A Systematic Assessment
  In: Four Essays on International Entrepreneurship, Wiesbaden: Gabler, 2011, S. 51 - 90
  ISBN: 978-3-8349-6900-2

2009

• Moder M., Hartmann E., Moser R.:
  Supply Frühwarnsysteme in der Automobilindustrie
  In: Business Focus China: Automobilindustrie, Karlsruhe: German Industry and Commerce GIC Verlag, 2009, S. 236-243

2008

• Bals L., Hartmann E., Gruner JR.:
  Management of the Innovation Process: A Comparison of Theoretical and Practical Approaches
  In: Specht D. (Hrsg.): Produkt- und Prozessinnovationen in Wertschöpfungsketten, Wiesbaden: Gabler, 2008, S. 125-162
  ISBN: 978-3-8349-9765-4
  DOI: 10.1007/978-3-8349-9765-4_7
• Jahns C., Moser R., Hartmann E.:
  Supplier Evaluation at EADS
  In: Wisner J. D., Stanley L. L. (Hrsg.): Process Management. Creating Value along the Supply Chain, Mason OH: Thomson South Western, 2008, S. 20-24

2007

• Hartmann E., Entchelmeier A., Henke M., Jahns C.:
  A Theory-Based Framework for Integrated Supply Performance Measurement
  In: Specht D. (Hrsg.): Strategische Bedeutung der Produktion, Wiesbaden: Gabler, 2007, S. 129-146
• Hartmann E., Lockström M., Reuter C.:
  Low-Cost Country Sourcing - Opportunity or Necessity?
  In: 24. Deutscher Logistik Kongress: Effizienz-Verantwortung-Erfolg, Hamburg: Deutscher Verkehrs-Verlag, 2007, S. 23-48
• Jahns C., Hartmann E.:
  Globales Netzwerkmanagement - Königsweg oder Irrglaube?
  In: Garcia Sanz F. J., Semmler K., Walther J. (Hrsg.): Die Automobilindustrie auf dem Weg zur globalen Netzwerkkompetenz, Berlin: Springer, 2007, S. 60-71
• Jahns C., Hartmann E., Bals L.:
  Offshoring - Analyse der Hintergründe und Potenziale
  In: Specht D. (Hrsg.): Insourcing, Outsourcing, Offshouring, Wiesbaden: Beiträge zur Produktionswirtschaft, 2007, S. 85-106
  ISBN: 978-3-8350-5423-3
  DOI: 10.1007/978-3-8350-5423-3_5
• Jahns C., Hartmann E., Entchelmeier A.:
  Beschaffung im Handel - Eine Unternehmensfunktion im Wandel
  In: Trommsdorff V. (Hrsg.): Jahrbuch Handelsforschung, Heidelberg: Physica, 2007, S. 217-232
• Jahns C., Hartmann E., Schmidberger S.:
  Performance Measurement Systeme und Benchmarking als integrierter Ansatz zur Leistungsmessung der Flughafenlogistik - am Beispiel Ramp Services
  In: Wald A., Fay C., Gleich R. (Hrsg.): Aviation Management, Berlin: Lit Verlag, 2007, S. 165-184

2006

• Grieger M., Hartmann E., Entchelmeier A.:
  Internet-based E-markets as a meta-enterprise information system
  In: Encyclopedia of Networked and Virtual Organizations, 2006, S. 475-483
  DOI: 10.4018/978-1-59904-885-7.ch063
• Hartmann E.:
  Der Beitrag des Einkaufs zum Unternehmenserfolg wird unterschätzt
  In: Jahns C., Darkow I.-L., Hartmann E., Schober H., Walter S. (Hrsg.): Einkauf & Supply Management. Highlights and Hot Spots, Sternenfels: Wissenschaft & Praxis, 2006, S. 29-34
• Hartmann E.:
  Der Mega-Hub
  In: Jahns C., Darkow I.-L., Hartmann E., Schober H., Walter S. (Hrsg.): Logistics und Supply Chain Management - Highlights und Hot Spots, Sternenfels: Wissenschaft & Praxis, 2006, S. 189-195
• Hartmann E., Seidler‐de Alwis R.:
  Transfer of Tacit Knowledge towards Innovation
  In: Faure C., Gleich R., Darkow I.-L. (Hrsg.): Innovation Management in Global Networks - A Challenge and Chance for Top-Management, Berlin: Springer, 2006
• Hartmann E., Trautmann G.:
  Implementing Global Sourcing through Innovative Procurement Organizations
  In: Faure C., Gleich R., Darkow I.-L. (Hrsg.): Innovation Management in Global Networks - A Challenge and Chance for Top-Management, Berlin: Springer, 2006

2005

• Hartmann E., Kaiser G.:
  Produktion. Problemfelder der Produktion im Überblick
  In: Jahns C. (Hrsg.): Logistics and Supply Chain Management, Sternenfels: Wissenschaft & Praxis, 2005
• Hartmann E., Moser R.:
  Supply Techniques
  In: Jahns C. (Hrsg.): Purchasing and Supply Management, Sternenfels: Wissenschaft & Praxis, 2005
• Jahns C., Hartmann E.:
  Strategisches Wertschöpfungsmanagement
  In: Jahns C. (Hrsg.): Purchasing and Supply Management, Sternenfels: Wissenschaft & Praxis, 2005