%0 Journal Article %A A. M. Magomedov %T Bipartite ${(6,3)}_6$-biregular graphs which do not allow interval coloring %J Daghestan Electronic Mathematical Reports %D 2014 %P 71-78 %V 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DEMR_2014_1_a2/ %G ru %F DEMR_2014_1_a2