5J. M. Smith, P. A. Bernstein, U. Dayal, N. Goodman, T. Landers, K. Lin, and E. Wong, " Multibase—integrating heterogeneous distributed database systems, " in Proceedings of the National Computer Conference. AFIPS Press, Montvale, NJ, 1981:487-499.
6Wiederhold G. Mediators in the architecture of future information systems. IEEE Computer, 1992,25(3) :38 -49.
7R. Hull, Managing semantic heterogeneity in databases: A theoretical perspective, in: ACM Symposium on Principles of Database Systems,Tucson, Arizona, 1997:51 -61.
8Marti A. Hearst. Information Integration. IEEE Intelligent Systems,1998, 13(5) :12 -24.
9May, Wolfgang; Lausen, Georg. A uniform framework for integration of information from the web. Information Systems. 2004,29 ( 1 ) : 59-91.
10Martin Doerr, Jane Hunter, Carl Lagoze. Towards a Core Ontology for Information Integration. Journal of Digital Information, 2003, 4 ( 1 ).
