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C. Hoáng and B. Reed, “A Note on Short Cycles in Digraphs,” Discrete Mathematics, Vol. 66, No. 1-2, 1987, pp. 103-107. doi:10.1016/0012-365X(87)90122-1

has been cited by the following article:

• TITLE: A Note on Directed 5-Cycles in Digraphs

  AUTHORS: Hao Liang, Junming Xu

  KEYWORDS: Digraph; Directed Cycle

  JOURNAL NAME: Applied Mathematics, Vol.3 No.7, June 21, 2012

  ABSTRACT: In this note, it is proved that if α≥0.24817, then any digraph on n vertices with minimum outdegree at least αn contains a directed cycle of length at most 5.