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Wellisch, H.H.: Organisatorische Neuordnung des DK-Systems (1971)
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- Nachrichten für Dokumentation. 22(1971), S.55-63
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Stevenson, G.: ¬The historical context: traditional classification since 1950 (1974)
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Coates, E.J.: Classification in information retrieval : the twenty years following Dorking (1978)
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Dahlberg, I.: Major developments in classification (1977)
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Comaroni, J.P.: ¬The eighteen editions of the Dewey Decimal Classification (1976)
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Friis-Hansen, J.B.: What Dewey knew (1976)
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Schulte-Albert, H.G.: Gottfried Wilhelm Leibniz and library classification (1971)
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Maltby, A.: Sayers' manual of classification for librarians (1978)
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Bhattacharyya, G.; Ranganathan, S.R.: From knowledge classification to library classification (1978)
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Mölgaard-Hansen, R.: From knowledge classification to library classification (1978)
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Svenonius, E.: Facet definition: a case study (1978)
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Dahlberg, I.: Classification theory, yesterday and today (1976)
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