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author_ss:"Heinrich, G."
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theme_ss:"Aufstellungssysteme Wissenschaftl. Bibliotheken"
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year_i:[1970 TO 1980}
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Heinrich, G.: Gegenwärtiger Stand und aktuelle Tendenzen der Sacherschließung in Universalbibliotheken (1978)
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Heinrich, G.: Klassifikatorische Sacherschließung in deutschen Bibliotheken (1978)
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