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DeHart, F.E.; Glazier, J.: Computer searching on PRECIS : an exploration of measuring comparative retrieval effectiveness (1984)
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Mahapatra, M.; Biswas, S.C.: Efficiency of PRECIS role operators (1984)
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Weintraub, D.K.: ¬An extended review of PRECIS (1979)
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Austin, D.; Digger, J.A.: PRECIS: The Preserved Context Index System (1985)
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Austin, D.: PRECIS (2009)
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