3Hamid R. Nemati et al. Knowledge warehouse: an architectural integration of knowledge management, decision support, artificial intelligence and data warehousing. Decision Support Systems 33(2002), pp. 143- 161.
4Huling N. Reference nmndup @ RUSA, http: //www.vrd2003.org/,2004-05-01.
5Mon L, Jane J. The Thank You Study: Research on User Satisfaction with Digital Reference Service. http: //www. vrd2003, org/, 2004-08-18.
6加州大学的The Information Literacy Program @ UCLA 项目. http://help. library, ucla. edu/index, cfm? Category=main, 2004-08-30.
7.Ask a librarian联合咨询网站[EB/OL].http://www.askalibrarian.org/,2004.08.30.
