1.
[Place of publication not identified] : [publisher not identified], 1981.
German | 29 DE |
2.
3.
4.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1996.
German | 29 DE |
5.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1990.
German | 28 DE |
6.
[Place of publication not identified] : [publisher not identified], 1991.
German | K 9221(121) DE 29 |
7.
[Place of publication not identified] : [publisher not identified], 1990.
German | 29 DE |
8.
[Place of publication not identified] : [publisher not identified], 1990.
German | 29 DE |
9.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1994.
German | 28 DE |
10.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1999.
German | K 35 DE 28 |