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Peters, T.A.: ¬The online catalog : A critical examination of public use (1991) 0.02

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COMPASS: Information retrieval / Use of / On-line computers
Subject: Information retrieval / Use of / On-line computers

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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