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Oberschelp, R.; Niewalda, P.: Deutscher Gesamtkatalog und Verbundkatalog : zwei Projektstudien (1978)
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Niewalda, P.: ¬Die Katalogisierung (1975)
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Niewalda, P.: Hat der Schlagwortkatalog eine Zukunft? (1978)
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Niewalda, P.: Ausgabeprobleme bei wachsenden Datenmengen und die Zukunft der EDV-Kataloge (1976)
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