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Pedersen, J.O.; Silverstein, C.; Vogt, C.C.: Verity at TREC-6 : out-of-the-box and beyond (2000)
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Wien, C.: Sample sizes and composition : their effect on recall and precision in IR experiments with OPACs (2000)
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Cooper, M.D.; Chen, H.-M.: Predicting the relevance of a library catalog search (2001)
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