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Liu, S.; Svenonius, E.: DORS: DDC online retrieval system (1991)
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Broadbent, E.: Classification access in the online catalog (1995)
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Biswas, S.C.; Smith, F.: Classed thesauri in indexing and retrieval : a literature review and critical evaluation of online alphabetic classaurus (1989)
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Mildner, H.: Kooperation zwischen Bibliotheken, Informationssystemen, Verlagen und wissenbasierten Systemen als Voraussetzung für eine Effektivierung der Wissenschaftskommunikation. (1988)
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Devadason, F.J.; Intaraksa, N.; Patamawongjariya, P.; Desai, K.: Faceted indexing based system for organizing and accessing Internet resources (2002)
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