1. On a theory for the type synthesis of mechanisms;Freudenstein,1964
2. The permutations of kinematic chains of eight member or less from the graph-theoretic viewpoint;Crossley,1965
3. Some applications of graph theory to the structural analysis of mechanisms;Dobrjanskyj;ASME Journal of Engineering for Industry, Series B,1967
4. Type synthesis of plane linkages;Woo;ASME Journal of Engineering for Industry, Series B,1967
5. R.C. Johnson, Application of number synthesis to practical problems in creative design, ASME Paper No. 65-WA-MD9, 1965.