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Lankes, R.D.; Collins, J.W.; Kasowitz, A.S.: Digital reference service in the new millennium : planning, management, and evaluation (2000)
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Lankes, R.D.: ¬The digital reference research agenda (2004)
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- Journal of the American Society for Information Science and technology. 55(2004) no.4, S.301-311
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Pomerantz, J.; Nicholson, S.; Belanger, Y.; Lankes, R.D.: ¬The current state of digital reference : validation of a general digital reference model through a survey of digital reference services (2004)
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- Information processing and management. 40(2004) no.2, S.347-363