1. S. Abramowski, H. Müller (1991). Geometrie Modeling (in German). B.I. Wissenschaftsverlag.
2. H. Alt, B. Behrends, J. Blömer (1991). Approximate Matching of Polygonal Shapes. In Proceedings of the 7th ACM Symposium on Computational Geometry, pp. 186–193.
3. H. Alt, M. Godau (1992). Measuring the Resemblance of Polygonal Curves. Extended Abstract (Personal Communication).
4. E. Artzy, G. Frieder, G.T. Herman (1981). The Theory, Design, Implementation and Evaluation of a Three-Dimensional Surface Detection Algorithm. Computer Graphics, 15(3):l-24.
5. R.E. Barnhill, G. Birkhoff, W. Gordon (1973). Smooth Interpolation Over Triangles. J. Approx. Theory, 8:114–128.