1.
2.
[Place of publication not identified] : [publisher not identified], 1993.
German | 29 DE |
3.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1994.
German | 29 DE |
4.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1990.
German | 29 DE |
5.
[Place of publication not identified] : [publisher not identified], 1981.
German | 29 DE |
6.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1994.
German | 29 DE |
7.
[Place of publication not identified] : [publisher not identified], 1991.
German | M 356 DE 29 |
8.
9.
Müchen [Germany] : Verlag Dokumentation, 1982.
German | 5 DE |
10.