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Bock, F.: Zur Geschichte des Schlagwortkatalogs in Praxis und Theorie (1923)
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Fellows, D.: Library of Congress Classification vs. decimal classification (1925)
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Eppelsheimer, H.W.: ¬Der neue Sachkatalog der Stadtbibliothek Mainz (1929)
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Fick, R.: ¬Die Kataloge der Druckschriftenabteilung (1921)
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Lotka, A.J.: ¬The frequency distribution of scientific productivity (1926)
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Pfenning, R.: Unser Realkatalog (1921)
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Below, E.: ¬Das Schlagwortregister zum Fachkatalog (1921)
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Meyer, A.: Zeitlich begrenzte Realkataloge (1922)
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Schleimer, H.: ¬Der bibliothekarische Schlagwortkatalog : Mit Regeln für die Universitätsbibliothek Graz und einem Anhang: Systematischer oder alphabetischer Sachkatalog? (1923)
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Weltsch, F.: ¬Der "engste Begriff" oder Gruppenbildung : ein Grundproblem des Schlagwortkataloges (1928)
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Schultze, W.: ¬Die Zukunft unserer Realkataloge (1928)
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Schunke, I.: ¬Die systematischen Ordnungen und ihre Entwicklungen : Versuch einer geschichtlichen Übersicht (1927)
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Fuchs, H.: ¬Der Gesamtkatalog der preußischen Bibliotheken und sein Ausbau zu einem deutschen Gesamtkatalog (1928)
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