1. Research Problem 2–10;Ádám;J. Combin. Theory,1967
2. Problems;Alspach;Discrete Math.,1984
3. Distributed loop computer networks;Bermond;J. Parallel Distrib. Comput.,1995
4. Algebraic Graph Theory;Biggs,1993
5. On 2-arc-transitive covers of complete graphs;Du;J. Combin. Theory,1998