1. Research Problem 2–10;Ádám;J. Combinatorial Theory,1967
2. On Groups and Graphs;Chao;Trans. Amer. Math. Soc.,1965
3. Finite Graphs and Their Automorphisms;Davydov;Problemy Kibernet.,1966
4. Theory of Cellular Logic Networks and Machines;Elspas;Stanford Res. Inst. Final Rept.,1968
5. Über Zyklen in Turnieren;Kotzig,1968