4Abitboul S. Querying Semi-structured Data. ICDT,Birmingham,U.K.,1997:1-18. 被引量：1
5Buneman P. Semistructured Data. PODS, Tucson, Arizona, 1997: 117. 被引量：1
6Levy A L. Answering Queries Using Views: A Survey. VLDB Journal,2001,10(4): 270-294. 被引量：1
7W3C. XQuery: A Query Language lbr XML. W3C Working Draft,http://www.w3.org/TR/xquery/, 2001. 被引量：1
8Draper D, Levy A Y, Weld D S. The Nimble XML Data Integration System. Proc. of Int. Con. on Data Engineering(ICDE), Heidelberg, Germany ,2001 : 155-160. 被引量：1
9Manolescu l, Florescu D, Kossmann D. Answering XML Queries over Heterogeneous Data Sources. Proceedings of the 27th VLDB Conference,Roma,Italy,2001:241-250 被引量：1
10Silberschatz A, Korth H, Sudarshan S. Database System Concepts(Third Edition). New York:The McGraw-Hill Companies, Inc., 1999. 被引量：1
