1.
|
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1992.
German | F 170 DE 29 |
|
2.
|
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1992.
German | F 43(121) DE 28 |
|
3.
|
[Place of publication not identified] : [publisher not identified], 1992.
German | N 44(151) DE 29 |
|
4.
|
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1991.
German | 29 DE |
|