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1.
|
Frankfurt am Main : P. Lang, c1991.
German | G 58 PAU.P |
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|
2.
|
[Place of publication not identified] : [publisher not identified], 1993.
German | G 58 STO.T |
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3.
|
Köln : Heymanns, c2002.
German | T 23 FOL.T |
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|
4.
|
Köln : Heymanns, 2001.
German | G 870 ESH.G |
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5.
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Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1992.
German | F 40 DE 28 |
|