7Ming C Lin. Fast and accurate collision detection for virtual environments[EB/OL]. 2000, http://www. cs.berkeley. edu/~daf/games/webpage/SimList/Papers/lin- 1997-FAC.pdf.
8Henry Konig, Thomas Strothotte. Fast collision detection for haptic displays using polygonal models[C]. Proceedings of the Conference on Simulation and Visualization 2002.289-300.
9Jens Eckstein, Elmar Schomer. Dynamic collision detection in virtual reality applications[EB/OL]. http://www. staff. uni-mainz.de/schoemer/publications/WSCG99.pdf,2000.