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Harman, D.: Automatic indexing (1994)
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Harman, D.: Overview of the first Text Retrieval Conference (1993)
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Harman, D.: Overview of the Second Text Retrieval Conference : TREC-2 (1995)
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Harman, D.K.: ¬The TREC test collections (2005)
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Midorikawa, N.: Is the synthetic expression method of the Dewey Decimal Classification an effective device for treating complex subjects? (1997)
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Visser, A.: Computers in education : added value learning toward better quality (1995)
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Park, A.L.: ¬A comparison of a new OCLC/PRISM searches with earlier OCLC derived searches (1992)
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