Author:
Godsil Chris,Royle Gordon
Reference3 articles.
1. N. Blggs, Three remarkable graphs, Canad. J. Math., 25 (1973), 397–411.
2. —, Algebraic Graph Theory, Cambridge University Press, Cambridge, second edition, 1993.
3. R. M. Weiss, Über s-reguläre Graphen, J. Combinatorial Theory Ser. B, 16 (1974), 229–233.