|
1.
|
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1995.
German | 28 DE |
|
|
2.
|
Köln : Heymann, 1980.
Third edition.
German | M 33 PAS.W |
|
|
3.
|
Milano [Italy] : A. Giuffrè, 1972.
Italian | 23 IT |
|
|
4.
|
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1985.
German | 28 DE |
|