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Austin, D.: PRECIS: a manual of concept analysis and subject indexing (1984)
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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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Madelung, H.-O.: Subject searching in the social sciences : a comparison of PRECIS and KWIC indexes indexes to newspaper articles (1982)
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Bidd, D.; Chevigny, L. de; Marshall, M.: PRECIS for subject access in a national audiovisual information system (1986)
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Austin, D.; Digger, J.A.: PRECIS: The Preserved Context Index System (1985)
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