1.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1993.
German | 29 DE |
2.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1996.
Danish | 29 DE |
3.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1993.
Danish | 29 DE |
4.
5.
[Geneva, Switzerland] : [World Intellectual Property Organization], 1987.
Swiss german | 6B OMPI |