1.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1977.
German | 28 DE |
2.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1980.
Danish | 29 DE |
3.
München [Germany] : Mitteilungen der deutschen Patentanwèalte, 1978.
German | 43 DE |
4.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1981.
German | 28 DE |
5.
6.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1983.
German | 28 DE |