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USMARC specifications for record structure, character sets, tapes (1990)
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Tenopir, C.; Neufang, R.: Electronic reference options : how they stack up in research libraries (1992)
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Wolf, D.: Beschleunigung und Verbesserung der national-bibliographischen Dienste der Deutschen Bibliothek (1989)
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Blake, P.: ¬A Russian revolution comes to online (1993)
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Campos, F.M.; Lopes, M.I.; Galvao, R.M.: MARC formats and their use : an overview (1995)
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