93 pubs · 587 cites · h-index 12
University of Cologne
1984 - 2016
LVR-Klinik Köln
1997 - 2004
Cologne Institute for Economic Research
1998 - 1998
TH Köln - University of Applied Sciences
1996 - 1996
Diebold Nixdorf (United States)
1990 - 1990