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Hildreth, C.R.: Advancing toward the E-3 OPAC : the imperative and the path (1991)
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Hildreth, C.R.: Extending the online catalog : the point of diminishing returns (1994)
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Hildreth, C.R.: ¬The GUI OPAC : approach with caution (1995)
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Hildreth, C.R.: ¬The use and understanding of keyword searching in a university online catalog (1997)
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