Flandrin, Evelyne; Li, Hao; Marczyk, Antoni; Woźniak, Mariusz. A generalization of Dirac's theorem on cycles through k vertices in k-connected graphs. Discrete Mathematics. 2007, 307 (7–8): 878–884. MR 2297171. doi:10.1016/j.disc.2005.11.052..
Flandrin, Evelyne; Li, Hao; Marczyk, Antoni; Woźniak, Mariusz. A generalization of Dirac's theorem on cycles through k vertices in k-connected graphs. Discrete Mathematics. 2007, 307 (7–8): 878–884. MR 2297171. doi:10.1016/j.disc.2005.11.052..