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Pao, M.L.; Worthen, D.B.: Retrieval effectiveness by semantic and citation searching (1989)
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Pao, M.L.: Term and citation retrieval : a field study (1993)
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Pao, M.L.: Concepts of information retrieval (1989)
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Pao, M.L.: ¬An empirical examination of Lotka's law (1986)
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Pao, M.L.: Relevance odds of retrieval overlaps from seven search fields (1994)
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Pao, M.L.: High precision by duplicate retrieval (1993)
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Pao, M.L.: Retrieval differences between term and citation indexing (1989)
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Pao, M.L.: Specifity of terms in questions (1983)
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