1.
|
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1982.
German | 29 DE |
|
2.
|
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1987.
German | 29 DE |
|
3.
|
Paris [France] : Librairies Techniques, 1977.
Spanish | G 721 VIV.J |
|
4.
|
Buffalo, New York : The Patent and Trademark Office Society, 1980.
English | 47 US |
|
5.
|
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1978.
German | 28 DE |
|