1. P.M. Larochelle, A.P. Dooley, A.P. Murray, J.M. McCarthy, Sphinx: Software for synthesizing spherical 4r mechanisms, in: NSF Design and Manufacturing Systems Conference, 1, January 1993, pp. 607–611.
2. D.A. Ruth, J.M. McCarthy, Sphinxpc: An implementation of four position synthesis for planar and spherical linkages, in: ASME Mechanisms Conference, September 1997.
3. P.M. Larochelle, J.M. Vance, J.M. McCarthy, Creating a virtual reality environment for spherical mechanism design, in: NSF Design and Manufacturing Grantees Conference, January 1998, pp. 83–84.
4. Spherical mechanism synthesis in virtual reality;Furlong;ASME Journal of Mechanical Design,1999
5. D. Tse, Computer-Aided Synthesis of Mechanical Systems for Spatial Motion, Dissertation, Florida Institute of Technology, 2000.