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Hunter, R.N.: Successes and failures of patrons searching the online catalog at a large academic library : a transaction log analysis (1991)
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Sinnott, E.: Fewer errors resulting from the users' misconception of the OPAC in 1992 than a decade ago : a comparative study of no direct hits and zero hits in author searches (1993)
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Moulaison, H.L.: OPAC queries at a medium-sized academic library : a transaction log analysis (2008)
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Larson, R.R.: ¬The decline of subject searching : long-term trends and patterns of index use in an online catalog (1991)
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Ensor, P.: User practices in keyword and Boolean searching on an online public access catalog (1992)
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