Evaluation of current architecture frameworks. - Susanne Leist; Gregor Zellner (SAC, 2006)

Information losses within the collaborative integration of different process models - BPML as an XML-based interchange format for BPMN business process models. - Florian Johannsen; Susanne Leist; Gregor Zellner (HICSS, 2007)

Situational Architecture Engineering (SAE) - Improving Strategic Change Through Architecture Methods. - Susanne Leist; Gregor Zellner (ICIS, 2008)

Identifizierung und Gestaltung neuer CRM-Prozesse. - Gregor Zellner (HMD Prax. Wirtsch., 2008)

Gestaltung hybrider Wertschöpfung mittels Architekturen - Analyse am Beispiel des Business Engineering. - Gregor Zellner (Wirtschaftsinf., 2008)

CRM Actions and Processes - Goal-oriented Design based on Relationship Values. - Bernd Heinrich; Gregor Zellner; Susanne Leist (Wirtschaftsinformatik (2), 2009)

The process map as an instrument to standardize processes: design and application at a financial service provider. - Bernd Heinrich; Matthias Henneberger; Susanne Leist; Gregor Zellner (Inf. Syst. E Bus. Manag., 2009)

Selecting Critical Processes for a Six Sigma Project: Experiences from an Automotive Bank. - Gregor Zellner; Susanne Leist; Florian Johannsen (ECIS, 2010)

Vorwort. - Susanne Leist; Matthias Goeken; Gregor Zellner (MKWI, 2010)

Analysis of techniques for business process improvement. - Philipp Griesberger; Susanne Leist; Gregor Zellner (ECIS, 2011)

A structured evaluation of business process improvement approaches. - Gregor Zellner (Bus. Process. Manag. J., 2011)

Service integrators in business networks - the importance of relationship values. - Bernd Heinrich; Gregor Zellner; Susanne Leist (Electron. Mark., 2011)

Six sigma as a business process management method in services: analysis of the key application problems. - Florian Johannsen; Susanne Leist; Gregor Zellner (Inf. Syst. E Bus. Manag., 2011)

Towards a framework for identifying business process redesign patterns. - Gregor Zellner (Bus. Process. Manag. J., 2013)

Introducing a Professional Complaint Management: The Case of a Fleet Management Company. - Florian Johannsen; Gregor Zellner (ECIS, 2015)

Implementing Six Sigma for Improving Business Processes at an Automotive Bank. - Florian Johannsen; Susanne Leist; Gregor Zellner (Handbook on Business Process Management (1), 2015)

Auswirkungen der Digitalisierung im Handel am Beispiel des Retourenprozesses. - Stefan Weinfurtner; Gregor Zellner; Stefan Münch (HMD Prax. Wirtsch., 2016)

Creating a Functional Interdependency Map for Supporting the "Act of Improvement" in Business Process Improvement Projects. - Florian Johannsen; Gregor Zellner; Philipp Griesberger (Int. J. Serv. Sci. Manag. Eng. Technol., 2022)