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1.
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München : C.H. Beck, 1991.
German | P 231 DRE.K |
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2.
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Geneva : World Intellectual Property Organization, 1983.
English | W D4 646(E) 1983 |
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3.
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[Oxford, England] : Oxford University Press (OUP), 2023
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4.
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[New York, NY] : Thomson Reuters, 2022
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5.
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Bern : Stämpfli, 1986.
German | P 231 KAEL.U |
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6.
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London : Graham & Trotman, 1987.
English | P 23 PIC.C |
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7.
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Ottawa : Research and International Affairs Branch, Bureau of Corporate Affairs, c1980.
English | N 711 LIE.C |
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