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Lesk, M.E.; Salton, G.: Relevance assements and retrieval system evaluation (1969)
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Robertson, S.E.: ¬The parametric description of retrieval tests : Part I: The basic parameters (1969)
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Robertson, S.E.: ¬The parametric description of retrieval tests : Part II: Overall measures (1969)
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Statement of principles (1961)
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Ranganathan, S.R.: Library classification through a century (1965)
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Classification and information control : Papers representing the work of the Classification Research Group during 1960-1968 (1969)
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Good, I.J.: ¬The decision-theory approach to the evaluation of information-retrieval systems (1967)
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Quillian, M.R.: Word concepts : a theory and simulation of some basic semantic capabilities. (1967)
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Taylor, R.S.: Question negotiation and information seeking in libraries (1968)
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Soergel, D.: Mathematical analysis of documentation systems : an attempt to a theory of classification and search request formulation (1967)
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Maron, M.E.; Kuhns, I.L.: On relevance, probabilistic indexing and information retrieval (1960)
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Austin, D.: Prospects for a new general classification (1969)
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