1. C. Berge, Graphes and hypergraphes (Dunod, Paris).
2. J.A. Bondy and U.S.R. Murty, Graph Theory with Applications (Macmillan, New York).
3. Pancyclic graphs 1;Bondy;J. Combin. Theory,1971
4. Theory of path length distributions;Faudree;Discrete Math.,1973
5. Pancyclic graphs;Haggkvist;Ars Combin.,1981