C. W. Wampler II Winding Number Analysis of Invertible Workspaces for Redundant Manipulators. [Citation Graph (0, 0)][DBLP] I. J. Robotic Res., 1988, v:7, n:5, pp:22-31 [Journal]
Jorge Angeles, Ou Ma Dynamic Simulation of n-Axis Serial Robotic Manipulators Using a Natural Orthogonal Complement. [Citation Graph (0, 0)][DBLP] I. J. Robotic Res., 1988, v:7, n:5, pp:32-47 [Journal]