1.
|
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1988.
German | 28 DE |
|
2.
|
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1992.
German | 28 DE |
|
3.
|
Müchen [Germany] : Verlag Dokumentation, 1994.
German | 5 DE |
|
4.
|
Müchen [Germany] : Verlag Dokumentation, 1992.
German | N 76(121) DE 5 |
|