3HARGETT J M. Song dynasty local gazetteers and their place in the history of Difangzhi writing[J]. Harvard Journal of Asiatic Studies, 1996,56: 405 - 442.
4JONES C B,PURVES R S. Geographical information retrieval [J]. International Journal of Geographical Information Science, 2008,22(3) :219-228.
5EGENHOFER M J. Towards the semantic geospatial Web[A]. Proceedings of the Tenth Association for Computing Machinery International Symposium on Advances in Geographic Information Systems[C]. VA: McLean, 2002.1 - 4.
6GOODCHILD M F, HILL L L. Introduction to digital gazetteer research[J]. International Journal of Geographical Information Science, 2008,22 (10) : 1039- 1044.
7HODGE G. Systems of Knowledge Organization for Digital Libraries: Beyond Traditional Authority Files [ M]. CO: Boulder, Council on Library and Information Resources,2000.
8COAD P, YOURDON E. Object Oriented Analysis[M]. NJ: Prentice Hall Press, 1999.
9GOODCHILD M F,YUAN M,COVA T J. Towards a general theory of geographic representation in GIS[J]. International Journal of Geographical Information Science, 2007,21 (3) : 239- 260.
10LIU Y, COODCHILD M F, GUO Q, et al. Towards a general field model and its order in GIS[J]. International Journal of Geographical Information Science, 2008,22 (6) : 623 - 643.