1.
|
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1979.
German | 28 DE |
|
2.
|
Müchen [Germany] : Verlag Dokumentation, 1992.
German | 5 DE |
|
3.
|
Koeln Et Al : Heymann, 1992.
German | N 141 WAD.F |
|
4.
|
Weinheim : Cambridge, c1996.
German | F 16 WAD.G |
|
5.
|
Weinheim : VCH Verlagsgesellschaft, c1991.
German | F 13 GEW |
|
6.
|
Müchen [Germany] : Verlag Dokumentation, 1994.
German | 5 DE |
|