Epsilon-Regular Sets and Intervals. - Jianchang Qi; Vadim Shapiro (SMI, 2005)

epsilon-Topological formulation of tolerant solid modeling. - Jianchang Qi; Vadim Shapiro (Comput. Aided Des., 2006)

Single-set and class-of-sets semantics for geometric models. - Jianchang Qi; Vadim Shapiro; Neil F. Stewart (Comput. Aided Des., 2006)

Geometric Interoperability With Epsilon Solidity. - Jianchang Qi; Vadim Shapiro (J. Comput. Inf. Sci. Eng., 2006)