D. Lu

Synthesis of spherical four-bar mechanisms for two or three prescribed coupler-curve cusps

D. Lu, W. Hwang, 2001 .

Synthesis of planar five-bar pantograph configurations by a geometric method

Wen Miin Hwang, D. Lu, W. Hwang, 1996 .

Cross ratio in sphere geometry and its application to mechanism design

Chi Feng Chang, D. Lu, W. Hwang, 1995 .