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Aitchison, J.: ¬The thesaurofacet. A multipurpose retrieval language tool (1970)
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- Source
- Journal of documentation. 26(1970), S.187-203
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Wilson, T.D.: ¬The work of the British Classification Research Group (1972)
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- Source
- Subject retrieval in the seventies: new directions. Proc. of an int. symp. ... College Park, 14.-15.5.1971. Ed.: H.H. Wellisch u.a
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Foskett, D.J.: Classification for a general index language: a review of recent research by the Classification Research Group (1970)
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