1. Numerical Methods in Engineering;Salvadori,1952
2. Relaxation Methods in Theoretical Physics;Southwell,1946
3. Refinement of finite differences calculations in kinematic analysis;Shaffer;Trans. ASME,1960
4. Optimum Design of Mechanical Elements;Johnson,1961
5. Method of finite differences provides simple but flexible arithmetical techniques for cam design;Johnson;Machine Design,1955