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Dahlberg, I.: Grundlagen universaler Wissensordnung : Probleme und Möglichkeiten eines universalen Klassifikationssystems des Wissens (1974)
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- Footnote
- Zugleich Dissertation Univ. Düsseldorf. - Rez. in: ZfBB. 22(1975) S.53-57 (H.-A. Koch)
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Lloyd, G.A.: ¬The Universal Decimal Classification as an international switching language (1972)
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- Source
- Subject retrieval in the seventies: new directions. Proc. of an Int. Symp. ... College Park, May 14-15, 1971. Ed.: H.H. Wellisch et al
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Comaroni, J.P.: Use of the Dewey Decimal Classification in the United States and Canada (1978)
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- Source
- Library resources and technical services. 22(1978), S.402-408
