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Heinrich, G.: Zur Didaktik und Methodik des Faches "Sacherschließung" (1975)
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- Arbeiten aus dem Bibliothekar-Lehrinstitut des Landes Nordrhein-Wetsfalen; H.45
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Heinrich, G.: Einheitliche Klassifikation für alle Bibliotheken? : ein Gutachten (1973)
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Heinrich, G.: Kriterien zur Untersuchung von bibliothekarischen Universalklassifikationen (1979)
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Heinrich, G.: ¬Die "Allzweck-Annotation" und der annotierte Katalogzetteldienst : offene Fragen und mögliche Alternativen (1971)
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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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