< >
- Mensch und Computer 2009, Berlin, Germany, (2009)151 35-09 .
- International Reports on Socio-Informatics - Open Design Spaces Supporting User Innovation. International Workshop on Open Design Spaces ODS 2009, Bonn, Germany, (2009)140 24-09 .
- Proceedings of the Tenth Americas Conference on Information Systems AMCIS 2004, New York, (August 2004)
- Proceedings of the Hawai'i International Conference on System Sciences HICSS 37, Big Island, Hawaii, (January 2004)
- page 46-67. Gabler, (2004)


group