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  • × language_ss:"e"
  • × type_ss:"d"
  • × year_i:[1970 TO 1980}
  1. Fenichel, C.H.: Online information retrieval : identification of measures that discriminate among users with different levels of types of experience (1979) 0.01 
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  2. Schabas, A.H.: ¬A comparative evaluation of the retrieval effectiveness of titles, Library of Congress Subject Headings and PRECIS strings for computer searching of UK MARC data (1979) 0.01 
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  3. Tahani, V.: ¬A general conceptual framework for information retrieval systems (1972) 0.00 
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