%0 Journal Article %A V. B. Larionov %T Criterion of existance of infinite substructure for some classes of monotone $k$-valued functions %J The Bulletin of Irkutsk State University. Series Mathematics %D 2013 %P 60-71 %V 6 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/IIGUM_2013_6_3_a4/ %G ru %F IIGUM_2013_6_3_a4