%0 Journal Article %A E. B. Dynkin %T Letter to the Editor %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1964 %V 19 %N 6 %U http://geodesic.mathdoc.fr/item/RM_1964_19_6_a38/ %G ru %F RM_1964_19_6_a38