1.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1999.
German | G 18(121) DE 28 |
2.
[Place of publication not identified] : [publisher not identified], 1999.
French | 34 DE |
3.
4.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1982.
German | 28 DE |