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Shechtman, N.; Chung, M.; Roschelle, J.: Supporting member collaboration in the Math Tools digital library : a formative user study (2004)
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Spink, A.; Wilson, T.; Ellis, D.; Ford, N.: Modeling users' successive searches in digital environments : a National Science Foundation/British Library funded study (1998)
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Blosser, J.; Michaelson, R.; Routh. R.; Xia, P.: Defining the landscape of Web resources : Concluding Report of the BAER Web Resources Sub-Group (2000)
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