Clean-up tool path generation by contraction tool method for machining complex polyhedral models. - Yongfu Ren; Hong-Tzong Yau; Yuan-Shin Lee (Comput. Ind., 2004)

Material side tracing and curve refinement for pencil-cut machining of complex polyhedral models. - Yongfu Ren; Weihang Zhu; Yuan-Shin Lee (Comput. Aided Des., 2005)