4Case. Beau David. Love's Labours Lost: the failure of traditional selecation praction in the acquisition of humanities electronic texts. Library Trends,2000(4).
5Thornton glenga a. impact of electronic resources on collection development, the roles of librarians, and library consoetia. Library Trends,2000(4).
6Hollernan,curt. Electronic: are basic criteria for the selection of materials changing? Library Trends,2000(4).
7Gary Geisler et al. Greating virtual collections in digital libraries:benefits and implementation issues. Proceeding of the Second ACM-IEEE-CS joint Conference on Digital Libraries, July 14-18,2002, Portland :210-218.
10Gary Geisler el al.Greating virtual collections in digital libraries:benefits and implementation issues.Proceeding of the Second ACM-IEEE-CS joint Conference on Digital Libraries,July 14-18,2002,Portland:210-218.
