Virtual object manipulation using dynamically selected constraints with real-time collision detection. - Yoshifumi Kitamura; Amy Yee; Fumio Kishino (VRST, 1996)

A Sophisticated Manipulation Aid in a Virtual Environment using Dynamic Constraints among Object Faces. - Yoshifumi Kitamura; Amy Yee; Fumio Kishino (Presence Teleoperators Virtual Environ., 1998)