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  1. Heine, M.H.: Distance between sets as an objective measure of retrieval effectiveness (1973) 10.31
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    Author
    Heine, M.H.
  2. Heine, M.H.: ¬The 'question' as a fundamental variable in information science (1980) 10.31
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    Author
    Heine, M.H.
  3. Heine, M.H.: ¬A provisional notation for describing the information structure of document (1995) 10.31
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