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Boeckx, T.: Onderwerpontsluiting in de on-line publiekscatalogus (1986) 0.07

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Theme: Verbale Doksprachen im Online-Retrieval
Klassifikationssysteme im Online-Retrieval

Kowalk, W.: ¬Der OPAC der Universitätsbibliothek Saarbrücken (1989) 0.01

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Theme: Klassifikationssysteme im Online-Retrieval

Markey, K.: Subject searching in library catalogs : Before and after the introduction of online catalogs (1984) 0.01

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Theme: Klassifikationssysteme im Online-Retrieval

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