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Köln : C. Heymann, 1997.
German | M 31 OHL.R |
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[Place of publication not identified] : [publisher not identified], 1999.
English | 34 DE |
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Cambridge, England : Cambridge University Press, 2020.
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Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1999.
German | M 341 DE 29 |
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Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1993.
German | F 6351(111) DE 29 |
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