%0 Journal Article %A A. V. Lapshin %T On a distributional characteristic of a difference of two random variables on a finite Abelian group %J Trudy po diskretnoj matematike %D 2003 %P 114-125 %V 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/TDM_2003_7_a6/ %G ru %F TDM_2003_7_a6