6James C T. An Efficient Search Algorithm to Find the Elementary Circuits of a Graph[J]. Communications of the ACM ,1970,13(12) :273 -276.
7Thomas H C ,Charles E L,Ronald L R,et al. Introduction to Algorithms [ M]. 2th ed. Cambridge,MA:The MIT Press,2002:466 -467.
8Kuo M H.Reconstruction of quadric surface solids from three-view engineering drawings[J].Computer-Aided Design,1998,30(7):517-527.
9Liu S X,Hu S M,Chen Y J,et al.Reconstruction of curved solids from engineering drawings[J].Computer-Aided Design,2001,33(14):1059-1072.
10Gong J H,Zhang H,Zhang G F,et al.Solid reconstruction using recognition of quadric surfaces from orthographic views[J].Computer-Aided Design,2006,38(8):821-835.
