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Rosen, J.; Snow, C.E.: Internet resources for ready reference (1997)
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Frické, M.; Fallis, D.: Indicators of accuracy for answers to ready reference questions an the Internet (2004)
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Notess, G.R.: Internet ready reference resources (1996)
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Dickstein, R.; Greenfield, L.; Rosen, J.: Using the World Wide Web at the reference desk (1997)
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Numminen, P.; Vakkari, P.: Question types in public libraries' digital reference service in Finland : comparing 1999 and 2006 (2009)
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