M. Wand, P. Jenke, Q. Huang, M. Bokeloh, L. Guibas, и A. Schilling. SGP '07: Proceedings of the fifth Eurographics symposium on Geometry processing, стр. 49–58. Aire-la-Ville, Switzerland, Switzerland, Eurographics Association, (2007)
D. Terzopoulos, J. Platt, A. Barr, и K. Fleischer. SIGGRAPH '87: Proceedings of the 14th annual conference on Computer graphics and interactive techniques, 21, стр. 205–214. New York, NY, USA, ACM Press, (июля 1987)
H. Seo, S. Kim, F. Cordier, и K. Hong. SPM '07: Proceedings of the 2007 ACM symposium on Solid and physical modeling, стр. 431–437. New York, NY, USA, ACM, (2007)