1Hersberger J A. Everyday information needs and infor- mation sources of homeless parents [J 1. New Review of Information BehaviourResearch, 2001 (2): 119- 134.
2Hersberger J. Are the economically poor information poor? Does the digital divide affect the homeless and ac- cess to information? [J ]. Canadian Journal of lnforma- tionandLibrarySciece, 2002/03, 27 (3): 45-63.
3Spink A, Cole C. Information and poverty: informa- tion-seeking channels used by African American low-in- come households [ J ]. Library & Information Science Research, 2001, 23 (1): 45-65.
4Knight B. Information seeking behavior of low income African Americans and the implications for collection de- velopment and information referral [EB/OL ]. [2010- 12-30]. http://www.informedge.net/ISBCollection.pdf.
5Courtright C. Health information-seeking among Latino newcomers : an exploratory study [EB/OL ]. [2011 - 09-19]. http'J/informationr.netlir/10-2/paper224.html.
6FisherKE, etal. InformationbehaviourofmigrantHis- panic farm workers and their families in the Pacific Northwest [EB/OL]. [2011-09-19]. http://infor- mationr.net/ir/1 O- 1/paper 199.html.
7Chatman E A. Alienation theory: application of a concep- tual framework to a study of information among janitors [J]. Reference Quarterly, 1990, 29 (3) : 355 - 368.
8Chatman E A. Life in a small world: applicability of grati- fication theory to information-seeking behavior [J ]. Journal of the American Society for Information Science,1991, 42 (6): 438-449.
9Agada J. Inner-city gatekeepers: an exploratory survey of their information use environment[J]. Journal of the American society for information science, 1999, 50 (1) : 74-85.
10Chatman E A. Diffusion theory: a review and test of a conceptual model in information diffusion [J ]. Journal of the American Society for Information Science, 1986, 37 (6): 377-386.
8Savolainen R. Everyday life information seeking: Approaching information seeking in the context of "' way of life". Library & Information Science Research, 1995,17 ( 3 ) :259 - 294.
9Chatman E A. 3tae impoverished life-world of outsiders. Journal of the American Soeiety for hffomlation Science, 1996,47 ( 3 ) : 193 - 206.
10Chatman E A. A theory of life in the round. Journal of the American Society for Information Science, 1999,50 (3) :207 - 217.