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Otlet, P.: Traité de documentation : le livre sur le livre - théorie et pratique (1934)
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Ansteinsson, J.: ¬The subject catalog in Germanic countries (1933)
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Diesch, K.: Katalogfragen (1937)
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Runge, S.: ¬Die Vereinheitlichung der Allgemeingruppen im systematischen Katalog (1934)
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Schmitz, W.: Alte und neue Realkataloge : Katalog und lebendige Wissenschaft (1931)
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Weber, C.: ¬Die Realkataloge der preussischen Universitätsbibliotheken (1930)
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Rang, B.: Zur Frage der Systematik und der Neuordnung der systematischen Kataloge (1939)
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Hofmann, H.: Beiträge zur Sachkatalogisierung (1938)
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Vorstius, J.: Kritische Gedanken über den neuesten Beitrag zur Kataloggeschichte und Kataloglehre (1934)
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