1. J.A. Alba, A method for the optimal synthesis of planar and spatial mechanisms with lower and higher pairs and position and kinematic constraints (in Spanish), Ph.D. Thesis, University of Zaragoza, 1994
2. Introduction to Optimum Design;Arora,1989
3. A fairly general method for optimum synthesis of planar mechanisms;Avilés;Mechanism and Machine Theory,1985
4. Optimal design and location of manipulators;Ceccarelli,1993
5. Computer method for kinematic analysis of lower pair mechanisms. Part I: Velocity and accelerations;García de Jalón;Mechanism and Machine Theory,1981