@article{bwmeta1.element.bwnjournal-article-fmv69i1p17bwm,
author = {Mehdi Behzad and Gary Chartrand and Curtiss Wall},
title = {On minimal regular digraphs with given girth},
journal = {Fundamenta Mathematicae},
volume = {68},
year = {1970},
pages = {227-231},
zbl = {0203.26502},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-fmv69i1p17bwm}
}
Behzad, Mehdi; Chartrand, Gary; Wall, Curtiss. On minimal regular digraphs with given girth. Fundamenta Mathematicae, Tome 68 (1970) pp. 227-231. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-fmv69i1p17bwm/