1. The Simplicial Helix and the Equation Tan(n θ) = n Tan(θ);Canad. Math. Bull.,1985
2. Gluss = Slug + Truss,2016
3. Spherical Joint for Coupling Three or More Links Together at One Point,2003
4. Hamlin, G. J., and Sanderson, A. C., 1994, “A Novel Concentric Multilink Spherical Joint With Parallel Robotics Applications,” IEEEInternational Conference on Robotics and Automation, San Diego, CA, May 8–13, pp. 1267–1272.10.1109/ROBOT.1994.351313