Memory Analysis of Solid Model Representations for Heterogeneous Objects. - Todd R. Jackson; Wonjoon Cho; Nicholas M. Patrikalakis; Emanuel M. Sachs (J. Comput. Inf. Sci. Eng., 2002)

A dithering algorithm for local composition control with three-dimensional printing. - Wonjoon Cho; Emanuel M. Sachs; Nicholas M. Patrikalakis; Donald E. Troxel (Comput. Aided Des., 2003)

Modifying free-formed NURBS curves and surfaces for offsetting without local self-intersection. - H. Liu; Takashi Maekawa; Nicholas M. Patrikalakis; Emanuel M. Sachs; Wonjoon Cho (Comput. Aided Des., 2004)