%0 Journal Article %A S. L. Berlov %A K. I. Tyschuk %T On the connection between the chromatic number of a graph and the number of cycles, covering a vertex or an edge %J Zapiski Nauchnykh Seminarov POMI %D 2016 %P 5-13 %V 450 %U http://geodesic.mathdoc.fr/item/ZNSL_2016_450_a0/ %G ru %F ZNSL_2016_450_a0