%0 Journal Article %A A. Yu. Bernshtein %T $3$-regular subgraphs and $(3,1)$-colorings of $4$-regular pseudographs %J Diskretnyj analiz i issledovanie operacij %D 2014 %P 3-16 %V 21 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DA_2014_21_5_a0/ %G ru %F DA_2014_21_5_a0