1. Yu, J.-X.: The Study on the Outline Model of the Agriculture Product Price Information Service. Agriculture Network Information (02) (2004)
2. Sheth, A.P.: Changing Focus on Interoperability in Information Systems: From System, Syntax, Structure to Semantics. Kluwer Academic Publishers, Boston (1999)
3. Bergamashi, S., Castano, S., De Capitani di Vimercati, S., et al.: An intelligent approach to information integration. In: Formal Ontology in Information Systems. IOS Press, Italy (1998)
4. Park, J., Ram, S.: Information Systems Interoperability: What Lies Beneath? ACM Trans. on Information Systems 22(4), 595–632 (2004)
5. Li, Y.: Research on Semantic Heterogeneity Elimination for information integration. Northwest Normal University (2009)