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Fugmann, R.: ¬The analytico-synthetic foundation for large indexing & information retrieval systems : dedicated to Prof. Dr. Werner Schultheis, the vigorous initiator of modern chem. documentation in Germany on the occasion of his 85th birthday (1983)
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Fugmann, R.: Theoretische Grundlagen der Indexierungspraxis (1992)
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Fugmann, R.: Subject analysis and indexing : theoretical foundation and practical advice (1993)
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Fugmann, R.: Inhaltserschließung durch Indexieren : Prinzipien und Praxis (1999)
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Fugmann, R.: ¬Das Buchregister : Methodische Grundlagen und praktische Anwendung (2006)
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