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Vorstius, J.: Ergebnisse und Fortschritte der Bibliographie in Deutschland seit dem ersten Weltkrieg (1948)
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Vorstius, J.: ¬Die Katalogprobleme im Spiegel der ausländischen Fachliteratur seit 1930 (1933)
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Vorstius, J.: ¬Die Sachkatalogisierung in den wissenschaftlichen Allgemeinbibliotheken Deutschlands (1948)
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