1Toms E G. Serendipitous information retrieval [C]. First DELOS Network of Excellence Workshop Information Seeking:Searching and Querying in Digital Libraries. Zurich, Switzerland : ERCIM, 2000 .. 17-20.
2Donald O Case. Looking for Information:A Survey of Research on Information Seeking, Needs, and Behavior [ M ]. San Diego, Calif. : Academic Press, 2002 : 84.
3Sanda Erdelez. Information Encountering:It's More Than Just Bumping into Information [EB/OL]. [2008-08-10]. http ://www.asis.org/Bulletin/Feb-99/erdelez.html.
4Heinstrom J. Psychological factors behind incidental information acquisition [J]. Library & Information Science Re- search 2006 (28) : 579-594.
5Hider P. Search goal revision in models of informa- tion retrieval 1[J]. Journal of Information Science,2006,32(4): 352-361.
6Erdelez S. Towards understanding information en- countering on the Web [C]//Proceedings of the 63rd annual meeting of the American Society for infox3nation science. Med- ford, NJ : Information Today, 2000 : 363-371.
7Licklider J C R. Proposed experiment in browsing [ M ]. Cambridge, MA : M.I.T. Press, 1965 : 86-88.
8Levine M M. An essay on browsing [J]. RQ,1969 (9) :35-36.
9Herner S. Browsing[M]//A. Kent,H. Lancour. Ency- clopedia of Library and Information Science. New York:Marcel Dekker, 1970:408 - 415.
10Vickery J E. A note in defense of browsing[J ]. BLL Review, 1977(5): 110.
