1.
2.
3.
4.
New York, New York : International Trademark Association, 1976.
English | 64 US |
5.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1990.
German | 29 DE |
6.
7.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1996.
German | 29 DE |
8.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1992.
German | G 252 DE 28 |
9.
Paris : Organisation for Economic Co-Operation and Development, 1985.
English | G 252 BEI.B |
10.