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Ballard, T.: OCLC's EPIC : report from the field (1991)
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Perry, S.; Salisbury, L.: ¬The ten most effective ways to search WorldCat on FirstSearch (1996)
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McJunkin, M.C.: Precision and recall in title keyword searching (1995)
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Marner, J.C.: Measuring the success of keyword search strategy in an online catalog (1993)
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Zanibbi, R.; Yuan, B.: Keyword and image-based retrieval for mathematical expressions (2011)
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