The following publications are possibly variants of this publication:
- T-spline simplification and local refinementThomas W. Sederberg, David L. Cardon, G. Thomas Finnigan, Nicholas S. North, Jianmin Zheng, Tom Lyche. tog, 23(3):276-283, 2004. [doi]
- Knot line refinement algorithms for tensor product B-spline surfacesTom Lyche, Elaine Cohen, Knut Mørken. cagd, 2(1-3):133-139, 1985. [doi]