%0 Journal Article %A L. V. Denisov %T Convolution semigroups in noncommutative probability theory %J Teoriâ veroâtnostej i ee primeneniâ %D 1991 %P 572-577 %V 36 %N 3 %U http://geodesic.mathdoc.fr/item/TVP_1991_36_3_a15/ %G ru %F TVP_1991_36_3_a15