1. Degree conditions for 2-factors;Brandt;J. Graph Theory,1997
2. Y. Egawa, S. Fujita, K. Kawarabayashi and H. Wang, Existence of two disjoint long cycles in graphs, submitted
3. Y. Egawa, M. Hagita, K. Kawarabayashi and H. Wang, Covering vertices of a graph by k disjoint cycles, to appear in Discrete Math
4. H. Enomoto, Private communication
5. On the existence of disjoint cycles in a graph;Enomoto;Combinatorica,1998