A linear pivoting heuristic procedure for computing the curve of intersection of two bicubic surface patches. - C. B. Millham; J. L. Zheng (Comput. Graph., 1989)

A linear programming method for ray-convex polyhedron intersection. - J. L. Zheng; C. B. Millham (Comput. Graph., 1991)

A linear pivoting method for detecting and tracing planar section curves of free-form surfaces. - J. L. Zheng; C. B. Millham (Comput. Graph., 1992)