Title	Topological Analysis between Bodies with Holes
Author	Zhang Jun, Qin Xiaolin
Citation	Vol. 8  No. 5  pp. 167-174
Keywords	9-intersection model, 3D spatial objects, topological relations, topological analysis, spatial reasoning

Title	Modeling Access Control Resource Based on Process Algebra
Author	Wang Lisong, Qin Xiaolin, Ding Qiulin
Citation	Vol. 10  No. 3  pp. 173-176
Keywords	process algebra, access control resources, security policy