37 pubs · 4,924 cites · h-index 20
Carl von Ossietzky Universität Oldenburg
1991 - 2014
German United Services Trade Union
2007 - 2007
Software (Spain)
2007 - 2007
University at Buffalo, State University of New York
2001 - 2001
Tsinghua University
1998 - 1998