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[Place of publication not identified] : [publisher not identified], 1998.
57. Aufl.
German | F 13 SCH.I BD I |
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Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1997.
Danish | 29 DE |
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[Heidelberg, Germany] : [Springer], 1988.
English | 34 DE |
9.