group< >
- International Society for Professional Innovation Management ISPIM 2012 to appear, Barcelona, Spain, (2012)
- Springer, Berlin, Germany, 1 edition, (2008)
- Mcgraw-Hill Professional, 1 edition, (2006)
- 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 .
- Fraunhofer-Verlag, Stuttgart, Germany, 151 35-09 . (2009)
