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1.
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Müchen [Germany] : Verlag Dokumentation, 1983.
German | 5 DE |
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2.
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[Place of publication not identified] : [publisher not identified], 1992.
German | 29 DE |
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3.
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Darmstadt : Wissenschaftliche Buchgesellschaft, 1985.
German | N 632 HAB.E |
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4.
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Müchen [Germany] : Verlag Dokumentation, 1983.
German | 5 DE |
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5.
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Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1986.
German | 28 DE |
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6.
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Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1982.
German | 28 DE |
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