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Shim, W.; Kantor, P.B.: Evaluation of digital libraries : a DEA approach (1999)
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Kantor, P.B.; Saracevic, T.: Quantitative study of the value of research libraries : a foundation for the evaluation of digital libraries (1999)
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Kantor, P.B.; Nordlie, R.: Models of the behavior of people searching the Internet : a Petri net approach (1999)
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