%0 Journal Article %T Meetings of the Moscow Mathematical Society %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 2003 %P 1225-1236 %V 58 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_2003_58_6_a19/ %G en %F RM_2003_58_6_a19