1.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1987.
German | 29 DE |
2.
3.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1988.
German | 28 DE |
4.
München [Germany] : Mitteilungen der deutschen Patentanwälte, 1995.
German | 43 DE |
5.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1981.
German | 28 DE |
6.
7.