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Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1999.
German | G 18(121) DE 28 |
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Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1997.
German | 28 DE |
3.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1995.
German | 28 DE |