3KOCSIS C K, HALL R,and HARDCASTLE S G. The integration of mine simulation and ventilation simulation to develop a Life-Cycle mine ventilation system [ EB/OL]. http://www. saimm, co. za/events/0305apcom/downloads/223-230 Kocsis. pdf,2008-12-22.
4Siyka Zlatanova, Alias Abdul Rahman, Wenzhong Shi. Topological models and frameworks for 3D spatial objects[ J]. Computers & Geosciences, 2004,30:419-428.