1.
2.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1996.
German | 29 DE |
3.
4.
5.
6.
[Heidelberg, Germany] : [Springer], 1997.
English | 34 DE |
7.
8.
9.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1977.
German | 28 DE |
10.