Geo-spatial query based on extended SPARQL

Xiaofang Zhai, Lei Huang, Zhifeng Xiao. Geo-spatial query based on extended SPARQL. In The 18th International Conference on Geoinformatics: GIScience in Change, Geoinformatics 2010, Peking University, Beijing, China, June, 18-20, 2010. pages 1-4, IEEE, 2010. [doi]

Abstract

Abstract is missing.