Author： Pfennig Gerhard
Publisher： Mohr Siebeck
E-ISSN： 1867-2523|7|2|213-220
ISSN： 1867-237X
Source： Zeitschrift fuer Geistiges Eigentum / Intellectual Property Journal, Vol.7, Iss.2, 2015-06, pp. : 213-220
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