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Gillman, P.: Text retrieval : key points (1992)
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Richardson, J.: Pointing the index finger (1994)
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Gillman, P.: ConQuest: retrieval on a large scale (1995)
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Spink, A.; Cole, C.: New directions in cognitive information retrieval : introduction (2005)
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Chowdhury, G.G.; Chowdhury, S.: Text retrieval and library management software in India (1994)
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