6Mesk A, Ben S. Visual overviews for discovering key papers and influences across research fronts. Journal of the America Society for Information Science and Technology, 2009,60 ( 11 ) : 2211 - 2222.
7Bernad J J, Danielle L B. Pattern of query reformulation during web searching. Journal of the America Society for Information Science and Technology, 2009,60 (7) : 1367 - 1368.
8Plaisant C. The challenge of information visualization evaluation// Levialdi S, Di Gesu V, Tarantion L. Proceedings of the Working Conference on Advanced Visual Interfaces. New York: ACM Press, 2004:109 -116.
9Wiley J. About us. [2009 -11 -25 ]. http ://www3. interscience. wiley, eom/aboutus/index, html.
