%0 Journal Article %T Meetings of the Moscow Mathematical Society %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1996 %V 51 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1996_51_1_a25/ %G ru %F RM_1996_51_1_a25