- submitted to COOP’10 – 9th International Conference on the Design of Cooperative Systems., (2010)
- Datenschutz Nachrichten (2008)
- Designing Digital Environments — Bringing in More Voices, Proceedings of the Participatory Design Conference 2000, CPSR, Palo Alto., page 106 - 115. Palo Alto, CPSR, (2000)
- Cooperative Systems Design: Scenario-Based Design of Collaborative Systems, page 163-178. Amsterdam, IOS Press, (2004)
- Implementing International Services. A tailorable method for market assessment, modularization and process transfer, Gabler, Wiesbaden, (2010)
- Lernen im digitalen Zeitalter, page 79--90. German Informatics society GI, (2009)
- Konzepte für das Service Engineering - Modularisierung, Prozessgestaltung und Produktivitätsmanagement, Physica-Verlag, Heidelberg, (2005)
- In: COMPUTERWOCHE 9/98 Wissensmanagement: Technologie und Architekturen (1998)
- IRIS 24. Proceedings of the 24th Information Systems Research Seminar in Scandinavia. Vol.1 : Ulvik, Norway, 11-14 August 2001, page 285- 300. Bergen, Department of Information Science, Univ. of Bergen, (2001)
- Entrepreneurship im Projektmanagement - Beiträge zur Konferenz interPM” 2005., page 257-276. (2005)
- Konzepte für das Service Engineering - Band 1, Physica Verlag, Heidelberg, (2005)
- Service Engineering - Entwicklung und Gestaltung innovativer Dienstleistungen, Springer Verlag, Berlin, (2003)
- CSCW Kompendium - Lehr- und Handbuch zum computerunterstützte kooperativen Arbeiten., Springer Verlag, Berlin, 1. edition, (2001)
- Proceedings des EMISA-Fachgruppentreffens 1997: Workflow-Management-Systeme im Spannungsfeld einer Organisation., 1/1998, page 46-55. Darmstadt., EMISA Forum, (1997)
- Position Paper for the Workshop Structure and Process: the interplay of routine and informed action at the E-CSCW 2001., (2001)
- Proceedings of the 1997 Annual Conference of the HFES European Chapter. Advances in Multimedia and Simulation. Human Machine Interface Implications., page 1. (1997)
- Proceedings of the Workshop Supporting Appropriation Work: Approaches for the reflective” user; E-CSCW 2005., page 14-23. Bonn, IISI, (2005)
- HICCS 2007 the Fortieth Annual Hawaii International Conference, page 232 - 241. (2007)electronically published on Systems Sciences: http://www.hicss.hawaii.edu/diglib.htm .
- Mensch \& Computer. Vom interaktiven Werkzeug zu kooperativen Arbeits- und Lernwelten, Teubner Verlag, Stuttgart, (2002)
- Mensch \& Computer 2003: Interaktion in Bewegung, page 87-98. Stuttgart, Teubner Verlag, (2003)


user