|
1.
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[Place of publication not identified] : [publisher not identified], 1991.
German | M 356 DE 29 |
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|
2.
|
Nomos-Verl.-Ges : Baden-Baden [Germany], 1992.
German | 24 DE |
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|
3.
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Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1992.
German | 29 DE |
|