1. A practical guide to splines;de Boor,1978
2. Feature-based surface design and machining;Cavendish;IEEE Comput Graph Appl,1992
3. Dietz, U. Geometrie-Rekonstruktion aus Meßpunktwolken mit glatten B-Spline Flächen (Reconstruction of geometry from clouds of data points using smooth B-spline surfaces). Doctoral Thesis, Technische Universität Darmstadt. Aachen: Shaker Verlag; 1998.
4. LINPACK users' guide;Dongarra,1984
5. A variational method to model G1 surfaces over triangular meshes of arbitrary topology in R3;Sarraga;ACM Transactions on Graphics,2000