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Wozniak, J.: Jezyk hasel przedmiotowych KABA : wybrane problemy realizacji projektu (1997)
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Xu, H.; Lancaster, F.W.: Redundancy and uniqueness of subject access points in online catalogs (1998)
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Gorman, M.: ¬An adminstrator's view : factors influencing organized subject access (1995)
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Tibbo, H.R.: ¬The epic struggle : subject retrieval from large bibliographic databases (1994)
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DeHart, F.; Scott, L.: Multifile searching on classification codes in mathematics : the problem of level of specifity (1993)
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