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Hubrich, J.: Aufwand zur Sicherstellung der Qualität und Möglichkeiten des Nutzens im OPAC (2005)
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Zumer, M.; Riesthuis, G.J.A.: Consequences of implementing FRBR : are we ready to open pandora's box? (2002)
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Ramesh Babu, B.; Tamizhchelvan, M.: ¬An investigation into the features of OPACs in Tamil Nadu (India) (2003)
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