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Harnack, A. von: ¬Die Auskunftserteilung als bibliothekarische Aufgabe (1940) 0.01

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Source: Zentralblatt für Bibliothekswesen. 57(1940), S.16-22

Sveistrup, H.: ¬Der neue Realkatalog der SUB Hamburg (1947) 0.00

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Source: Probleme des Wiederaufbaus im wissenschaftlichen Bibliothekswesen: aus d. Verhandlungen des 1. Bibliothekartagung der britischen Zone in Hamburg vom 22.-24.10.1946

Shannon, C.E.: ¬A mathematical theory of communication : pt.1.2 (1948) 0.00

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Source: Bell system telephone journal. 27(1948), S.379-423, 639-641

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