1.
2.
3.
4.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1993.
German | 29 DE |
5.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1995.
German | 29 DE |
6.
[Place of publication not identified] : [publisher not identified], 1992.
German | M 234(13) DE 29 |
7.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1995.
German | 28 DE |
8.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1982.
German | 28 DE |
9.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1988.
German | 29 DE |
10.