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Hahn, G.: ¬Die Bibliothek des Wissenschaftlichen Dienstes des US-Kongresses : Eine Bibliothek in der Library of Congress (1985)
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Hahn, G.: Sacherschließung durch Schlagwortkataloge : theoretische und praktische Fragen, dargestellt am Beispiel der Bibliotheken der Industrie- und Handelskammern (1983)
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Hahn, G.: ¬Die Bibliothek des Deutschen Bundestages : Informationsbasis für die parlamentarische Arbeit (1983)
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Hahn, G.: Information und Dokumentation in der Bibliothek des Deutschen Bundestages : ein Beispiel der Praxis für die Einheit bibliothekarischer und dokumentarischer Prinzipien (1978-79)
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Hahn, G.: ¬Die Klassifikation der Rechtsliteratur in der Bibliothek des Deutschen Bundestages (1981)
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Koch, T.: Nutzung von Klassifikationssystemen zur verbesserten Beschreibung, Organisation und Suche von Internetressourcen (1998)
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Dahlberg, I.: Einteilungsprinzipien von Klassifikationssystemen (1974)
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Pfeffer, M.; Schöllhorn, K.: Praktische Nutzung von Klassifikationssystemen (2018)
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Sozialgeschichte der Informatik : Kulturelle Praktiken und Orientierungen (1998)
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Gödert, W.: Strukturierung von Klassifikationssystemen und Online-Retrieval (1995)
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