Total Network Data System: Small Office Network Data System. - Douglas H. Barnes; John J. O'Connor (Bell Syst. Tech. J., 1983)

On the Modeling of Passive Motion of the Human Knee Joint by Means of Equivalent Planar and Spatial Parallel Mechanisms. - Vincenzo Parenti-Castelli; Alberto Leardini; Raffaele Di Gregorio; John J. O'Connor (Auton. Robots, 2004)

Mathematical models of passive motion at the human ankle joint by equivalent spatial parallel mechanisms. - Raffaele Di Gregorio; Vincenzo Parenti-Castelli; John J. O'Connor; Alberto Leardini (Medical Biol. Eng. Comput., 2007)