%0 Journal Article
%A Li, Qiao
%A Brualdi, Richard A.
%T On minimal regular digraphs with girth 4
%J Czechoslovak Mathematical Journal
%D 1983
%P 439-447
%V 33
%N 3
%U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1983.101894/
%R 10.21136/CMJ.1983.101894
%G en
%F 10_21136_CMJ_1983_101894