國立臺灣師範大學圖書資訊學研究所Saracevic, T.Spink, A.Wu, Mei-Mei2015-07-032015-07-031997/06/02http://rportal.lib.ntnu.edu.tw/handle/20.500.12235/73437Users and Intermediaries in Information RetrievalWhat are they talking about