1. “An infinite class of 4-designs”;Alltop;Journal of Combinatorial Theory,1969
2. “An infinite class of 5-designs”;Alltop;Journal of Combinatorial Theory (A),1972
3. “New 5-designs”;Assmus;Journal of Combinatorial Theory,1969
4. Bivalent Programming by Implicit Enumeration;Balas,1975
5. Introduction to the theory of groups of finite order;Carmichael,1956