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Mendelsohn, J.: Perspectives on quality of reference service in an academic library : a qualitative study (1997)
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Sullivan, W.; Schoppmann, L.A.; Redman, P.M.: Analysis of the use of reference services in an academic health sciences library (1994)
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Olson, H.A.; Schlegl, R.: Standardization, objectivity, and user focus : a meta-analysis of subject access critiques (2001)
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Sjolander, E.; Sjolander, R.: ¬A strategic analysis of the delivery of service in two library reference departments (1995)
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Bicknell, T.: Focusing on quality reference service (1994)
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