1. E. Catmull and R. Rom. 1974. A class of local interpolating splines. Computer aided geometric design (1974) 317--326. 10.1016/B978-0-12-079050-0.50020-5 E. Catmull and R. Rom. 1974. A class of local interpolating splines. Computer aided geometric design (1974) 317--326. 10.1016/B978-0-12-079050-0.50020-5
2. Symmetric iterative interpolation processes
3. A 4-point interpolatory subdivision scheme for curve design
4. Gerald Farin. 2002. Curves and Surfaces for CAGD: A Practical Guide (5th ed.). Morgan Kaufmann Publishers Inc. Gerald Farin. 2002. Curves and Surfaces for CAGD: A Practical Guide (5th ed.). Morgan Kaufmann Publishers Inc.