%0 Journal Article %A Mehdi Behzad %A Gary Chartrand %A Curtiss Wall %T On minimal regular digraphs with given girth %J Fundamenta Mathematicae %D 1970 %P 227-231 %V 69 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-69-3-227-231/ %R 10.4064/fm-69-3-227-231 %G en %F 10_4064_fm_69_3_227_231