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Hahn, G.: ¬Die historischen Komponenten des Katalogsystems der Bibliothek des Deutschen Bundestages (1987) 0.03

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Schmidt, G.: Panizzis Regeln für den alphabetischen Katalog : zur Entstehungsgeschichte der 91 'Rules for the compilation of the catalogue' (1982) 0.02

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Pettee, J.: ¬The subject approach to books and the development of the dictionary catalog (1985) 0.01

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Footnote: Original in: Pettee, J.: The history and theory of the alphabetical subject approach to books. New York: Wilson 1946. S.22-25.

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