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Xie, I.; Cool, C.: Understanding help seeking within the context of searching digital libraries (2009)
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Xie, I.; Babu, R.; Davey Castillo, M.; Han, H.: Identification of factors associated with blind users' help-seeking situations in interacting with digital libraries (2018)
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Xie, I.; Matusiak, K.M.: Discover digital libraries : theory and practice (2016)
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