%0 Journal Article %A R. M. Ganopolsky %T The number of disordered covers of a~finite set by subsets having fixed cardinalities %J Prikladnaâ diskretnaâ matematika %D 2010 %P 5-17 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/PDM_2010_4_a0/ %G ru %F PDM_2010_4_a0