1.
2.
3.
4.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1992.
German | G 25 DE 29 |
5.
[Heidelberg, Germany] : [Springer], 1993.
English | 34 DE |
6.
7.
[Heidelberg, Germany] : [Springer], 1989.
English | 34 DE |
8.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1993.
German | 29 DE |
9.
10.
Stockholm [Sweden] : Nordiskt Immateriellt Rättsskydd (NIR), 1992.
English | 3 SE |