1.
[Place of publication not identified] : [publisher not identified], 1985.
German | 28 DE |
2.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1986.
German | 28 DE |
3.
4.
5.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1983.
German | 28 DE |
6.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1985.
German | 28 DE |