Zur Entwicklung und zum Einsatz von Objektmerkmalen als Entscheidungskriterien in der Beschaffung, Köln 1991 - received the Scientific Award for PhD papers in 1992 by the Bundesverband Materialwirtschaft, Einkauf und Logistik (BME)
Bedeutungswandel der Beschaffung. Objektmerkmale als Entscheidungskriterien in der Beschaffung, in: Beschaffung aktuell, 39/12 (1992): 50-55
Erreichung der Beschaffungsziele. Objektmerkmale als Entscheidungskriterien in der Beschaffung - Teil II, in: Beschaffung aktuell, 40/3 (1993): 24-27
Personalkonzepte für die Beschaffung bei der Henkel KGaA, in: Hahn, Dietger; Kaufmann, Lutz (Eds.): Handbuch Industrielles Beschaffungsmanagement, 2nd ed., Wiesbaden 2002: 973-986, https://doi.org/10.1007/978-3-322-99462-2_44
Schlüsselkunden managen mit der Balanced Scorecard: in: Harvard Business manager, 28/9 (2006): 54-59 (with Prof. Lutz Kaufmann), https://www.manager-magazin.de/hbm/management/schluesselkunden-managen-mit-der-balanced-scorecard-a-729f66c6-0002-0001-0000-000091624297
Management von Kundenzufriedenheit in der Spezialchemie: das Beispiel der Cognis Gruppe, in: Homburg, Christian (Ed.): Kundenzufriedenheit, 6th/7th ed., Wiesbaden 2006/2008: 605-625/461-481 (with Dr. Sven Kühlborn)
Herausforderungen im Einkauf der Zukunft, in: Gabath, Christoph W. (Ed.): Innovatives Beschaffungsmanagement: Trends, Herausforderungen, Handlungsansätze, Wiesbaden 2011: 9-14, https://doi.org/10.1007/978-3-8349-6748-0_1
Building a Sustainable Brand in Specialty Chemicals (Carve Out from a Big Corporate), in: Wollmann, Peter et al. (Eds.): Organization and Leadership in Disruptive Times, Cham 2021: 253-265 (with Susanne Marell, Jutta Wenzl), https://doi.org/10.1007/978-3-030-63034-8_18
Aufbau einer nachhaltigen Marke in Spezialchemikalien (Ausgliederung aus einem großen Konzern), in: Wollmann, Peter et al. (Eds.): Organisation und Führung in turbulenten Zeiten, Cham 2024: 279-293 (with Susanne Marell, Jutta Wenzl), https://doi.org/10.1007/978-3-031-57163-3_18
The Role of “Navigators” in Travelling Organizations, in: Kempf, Michael; Kuehn, Frank (Eds.): Navigating a Travelling Organization, Cham 2022: 53-64, https://doi.org/10.1007/978-3-030-95326-3_4
Verhandeln im B2B heißt zuhören, um zu verstehen, in: Sales Excellence, 33/12 (2024): 32-34, https://doi.org/10.1007/s35141-024-2377-6
Verkauf und Einkauf: Auf gemeinsame Wurzeln besinnen, in: Springer Marketing + Vertrieb, Online-Artikel, 16.01.2025, https://www.springerprofessional.de/vertriebsmanagement/crm/verkauf-und-einkauf-auf-gemeinsame-wurzeln-besinnen/50367190
Unite and conquer – End-to-end value creation through intra-organizational purchasing-sales integration, in: Industrial Marketing Management, 126 (April 2025): 236-250 (with Wim Biemans). https://doi.org/10.1016/j.indmarman.2025.02.021
Navigators in boundary-spanning roles: Leadership insights from 12 interviews, in: Leader to Leader, 116 (Spring 2025): 80-86. https://dx.doi.org/10.1002/ltl.20874
Navigatoren brechen Silos auf, in: Springer Management + Führung, Online-Artikel, 11.04.2025, https://www.springerprofessional.de/organisationsentwicklung/agile-methoden/navigatoren-brechen-silos-auf/50728688
Von Balanced zu Cross (X-)Balanced Scorecards, in: Sales Excellence, 34/4-5 (2025): 18-21, https://doi.org/10.1007/s35141-025-2426-9
Navigators in organisations: Steering through change with head, heart and hands, Rotterdam School of Management (RSM) Discovery, 05/12/25, https://www.rsm.nl/discovery/2025/navigators-in-organisations/
Erfolg im Vertrieb erfordert aktive Grenzgänger, in: Sales Excellence, 34/6 (2025): 18-21. https://doi.org/10.1007/s35141-025-2448-3
Gute Geschichten (er)zählen, in: Sales Excellence, 34/9 (2025): 22-23 (with Tobias Laxa). https://doi.org/10.1007/s35141-025-2483-0
Vertrieb von Innovationen, in: Sales Excellence, 34/12 (2025): 23-26, https://www.springerprofessional.de/vertrieb-von-innovationen/51811808
Inkoop en verkoop sterker als tandem, in: DEAL!, NEVI (Nederlandse Vereniging voor Inkoopmanagement), 44/1 (2026): 40-43. https://nevi.nl/kennislab/deal/2026/1/inkoop-en-verkoop-sterker-als-tandem
Collaborative Sourcing: Zur nachhaltigen Transformation der Beschaffungsfunktion, in: Fröhlich, Lisa; Steinbiß, Kristina (Eds.): Handbuch Nachhaltige Beschaffung, Strategien für die digitale und nachhaltige Transformation, Cham 2026, https://doi.org/10.1007/978-3-662-71282-5_85-1
Collaborative Sourcing: A Three-Pillar-Based Approach to Meeting the 17 SDGs (Sustainable Development Goals), in: Wollmann, Peter; Pemler, Doris; Ndrevataj, Mersida: The Sustainable Organization – Volume 3: Academic, Cross-Sectoral, and Industrial Pathways to Achieving the UN SDGs, Cham 2026: 259-286.
How Retailer Buyers Help and Hinder Supplier Enabled Innovation, in: Kotzab, H.; Eltantawy, R. (Eds.): Handbook of Research on Supply Chains and Marketing. Edward Elgar Publishing, 2026 (forthcoming; with Rodney W. Thomas, Stephanie P. Thomas, Remko I. van Hoek)
European Packaging Regulations, Packaging Strategies Conference, Atlanta, GA, 03/25/96
Strategic Procurement for the 21st century, Arthur D. Little Management Forum, Frankfurt, Germany, 02/10/98
Der Einkauf im 21. Jahrhundert – Herausforderungen und Chancen, 4. IIR Einkaufsleiterforum: EPCON, Mainz, Germany, 04/16/08
Key Account Management Training, 3M, Neuss, Germany, 09/19/08
Plastic in Rigid Industrial Packaging, 3rd GPCA Plastic Summit, Dubai, UAE, 04/04/12
Cradle to Cradle – Sustainability in Industrial Packaging, Dachmarkenforum, Düsseldorf, Germany, 09/11/13
B2B – Erfahrungen aus der Einkaufs-/Vertriebsperspektive, Miller Heiman – Sales Leadership Series, Berlin, Germany, 07/11/16
Purchasing and Sales: Separated at Birth?, Supply Chain Resource Cooperative (SCRC) @ North Carolina State University, Raleigh, NC, 04/25/19, https://scm.ncsu.edu/scm-articles/article/scrc-meeting-closing-the-gap-between-marketing-and-procurement
How can strategic suppliers and strategic procurement collaborate more effectively?, Cranfield School of Management, Key Account Management Forum, 07/22/21, https://www.linkedin.com/pulse/how-can-strategic-suppliers-procurement-collaborate-more-effectively-/?trk=pulse-article
Purchasing & Sales - Twins separated at birth!, The Conference Board, Procurement Leadership Council, Bruxelles, Belgium, 03/13/24
Purchasing & Sales - Twins separated at birth!, V-Kick, Bundesverband der Vertriebsmanager e.V., 10/16/24
Storytelling im Vertrieb, Inspire & Develop (V-Kick), Bundesverband der Vertriebsmanager e.V., 10/14/25
Key Business Relationships – Comparing Customer and Supplier Perspectives, IMBA/WHU Otto Beisheim School of Management, Vallendar, Germany, 11/30/07
Competitive Bridge Building, Real Life Learning in Customer – Supplier Relationships, PT-MBA, WHU Otto Beisheim School of Management, Düsseldorf, Germany, 06/25/11 (with Prof. Lutz Kaufmann)
B2B – Learning from a buying and selling perspective, IMBA/Mannheim Business Forum, Mannheim, Germany, 09/16/11
B2B - Learning from a Sell- and Buy-side Marketing Perspective, University of San Diego (USD) School of Business, CA, MBA class Supply Chain Management, 05/09/19
B2B - Learning from a Sell- and Buy-side Marketing Perspective, University of California San Diego (UCSD), CA, Rady School of Management, MBA Executive Speaker Series, 10/17/19
Operations Management (MGT 171), University of California San Diego (UCSD), CA, Rady School of Management, Undergrad class, 10/28/19
B2B - Learning from a Sell- and Buy-side Marketing Perspective, PT-MBA, WHU Otto Beisheim School of Management, Düsseldorf, Germany, 07/12/20
Stop Marketing - Start Engaging: Key success factors in B2B Relationship Management, Baden-Wuerttemberg Cooperative State University (DHBW), Germany, 10/22/20
Personal Selling, Baden-Wuerttemberg Cooperative State University (DHBW), Germany, 01/18-19/21 and 01/25-26/22
Supply Chain Analytics (MGT 449), University of California San Diego (UCSD), CA, Rady School of Management, MBA class, 02/17/21
Supply Chain Strategy: Business Performance and Cost (MGT 176), University of California San Diego (UCSD), CA, Rady School of Management, Undergrad class, 04/16/21
Negotiation Management, Ruhr University Bochum (RUB), Germany, Sales Management Department (SMD), 06/09/21, 11/09/21, 06/14/22, 11/02/22, 06/06/23
Insights from Strategic Procurement, Key Account Management Forum Webinar Series, Cranfield School of Management, UK, 07/22/21, https://www.linkedin.com/pulse/how-can-strategic-suppliers-procurement-collaborate-more-effectively-?trk=pulse-article
Industrial & Service (B2B) Marketing, Elective in Digital Business Management, Baden-Wuerttemberg Cooperative State University (DHBW), Germany, Spring 2022 *
Bridging the gap between academia and practice, DBA workshop, Otago Business School, Dunedin, NZ, 08/12/22
Global Strategic & Sustainable Sourcing (SCM 571) *, MSc SCM online, University of Tennessee, Knoxville (UTK), TN, Fall 2022, Fall 2023, Spring 2025, Summer 2025, Fall 2025, Spring 2026, Fall 2026, Spring 2027 (forthcoming)
New Thinking in Marketing Theory (BDBA 909) & Strategy and Growth (BDBA 912), DBA postgraduate program, Otago Business School, Dunedin, NZ, May & August 2023 *
Strategic Sourcing, FT-MBA/EMBA Elective, Erasmus University, Rotterdam School of Management (RSM), Fall 2023, Fall 2024, Fall 2025 (with Prof. Finn Wynstra), Fall 2026 (forthcoming)
Sourcing & Procurement Management (SCM 431), Kühne Logistics University, Hamburg, Germany, Spring 2024 *
Sales & Procurement - Two sides of the same coin!, Supply Chain Relationships (Jenkins MBA 541), North Carolina State University (NCSU), Supply Chain Leadership Series, Raleigh, NC, 11/19/24