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  • × author_ss:"Helfrich, M."
  1. Helfrich, M.: WWW und der Schutz des Urhebers : Manche Webseiten sind künstlerische Meisterwerke - welchen rechtlichen Schutz gibt es für dieses geistige Eigentum? (1997) 0.02
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  2. Helfrich, M.: ¬Das digitale Archiv (1998) 0.01
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