%0 Journal Article %A V. V. Gotsulenko %T A formula for the number of combinations with constrained repetitions and its application %J Prikladnaâ diskretnaâ matematika %D 2013 %P 71-77 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/PDM_2013_2_a7/ %G ru %F PDM_2013_2_a7