
Franssen, H., Veltkamp, R.C. & Wesselink, J.W. (1999). Efficient evaluation of triangular B-splines. (UU-CS1999-18 ). Utrecht, The Netherlands: Utrecht University: Information and Computing Sciences. Veltkamp, R.C. & Wesselink, J.W. (1996). Variational modeling of triangular Bezier surfaces. (UU-CS1996-40 ). Utrecht, the Netherlands: Utrecht University: Information and Computing Sciences.