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¬The Second Text Retrieval Conference : TREC-2 (1995)
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Robertson, S.: On the history of evaluation in IR (2009)
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Dang, E.K.F.; Luk, R.W.P.; Allan, J.: Beyond bag-of-words : bigram-enhanced context-dependent term weights (2014)
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Voorhees, E.M.; Harman, D.K.: ¬The Text REtrieval Conference (2005)
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¬The Sixth Text Retrieval Conference (TREC-6) (1998)
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