Dimensional verification of NC machining profiles using extended quadtrees. - Chonglin Liu; Donald M. Esterling; Josep Fontdecaba; Eric Mosel (Comput. Aided Des., 1996)

Solid modeling of 4-axis wire EDM cut geometry. - Chonglin Liu; Donald M. Esterling (Comput. Aided Des., 1997)

Virtual CNC with Performance Error Modeling. - Donald M. Esterling; Josep Fontdecaba (SSM, 1998)