1. Geometry design of roller gear cams with hyperboloid rollers;Yan;Math. Comput. Model.,1995
2. Gear Geometry and Applied Theory;Litvin,2004
3. M.P. Carmo, Differential Geometry of Curves and Surfaces, Ed. Prentice-Hall Press, New Jersey, 1976, Chap. 4.
4. Differential Geometry;Chen,2006
5. Differential Geometry and Its Applications;Oprea,2007