TY  - BOOK
A1  - Janz, Norbert
A1  - Licht, Georg
T1  - Innovation Activities and European Patenting of German Firms. A Panel Data Analysis / Janz, N., G. Licht
Y1  - 2002
UR  - https://opus.bibliothek.fh-aachen.de/opus4/frontdoor/index/index/docId/1101
ER  -