%0 Journal Article %A M. V. Fokin %T The existence of the singular spectrum and the asymptotic behavior %J Doklady Akademii Nauk %D 1993 %P 304-307 %V 333 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1993_333_3_a8/ %G ru %F DAN_1993_333_3_a8