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  • × author_ss:"Petschar, H."
  1. Petschar, H.: Vom Zettel- zum Bildkatalog : das Projekt "Digitales Bildarchiv" an der Österreichischen Nationalbibliothek - ein Werkstattbericht (2002) 0.00 
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  2. Petschar, H.; Strouhal, E.; Zobernig, H.: ¬Der Zettelkatalog : Ein historisches System geistiger Ordnung (1999) 0.00 
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