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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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Harman, D.: ¬The Text REtrieval Conferences (TRECs) : providing a test-bed for information retrieval systems (1998)
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Robertson, S.E.: OKAPI at TREC-3 (1995)
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Blair, D.C.: Some thoughts on the reported results of TREC (2002)
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Sparck Jones, K.: Reflections on TREC (1997)
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Gilchrist, A.: Research and consultancy (1998)
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