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Austin, D.; Digger, J.A.: PRECIS: The Preserved Context Index System (1985)
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Austin, D.: PRECIS in a multilingual context : Pt.1: PRECIS: an overview (1976)
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Hsueh, L.-K.: ¬The application of PRECIS in indexing Chinese documents : an experimental study (1993)
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Austin, D.; Sørensen, J.: PRECIS in a multilingual context : Pt.2: A linguistic and logical explanation of the syntax. (1976)
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Biswas, S.C.; Smith, F.: Efficiency and effectiveness of deep structure based indexing languages : PRECIS vs. DSIS (1991)
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