%0 Journal Article
%A G. V. Nenashev
%T On existence of noncritical vertices in digraphs
%J Zapiski Nauchnykh Seminarov POMI
%D 2012
%P 107-116
%V 406
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ZNSL_2012_406_a5/
%G ru
%F ZNSL_2012_406_a5