%0 Journal Article %A V. S. Chernyavskii %T To the Editor of Proceedings of the Moscow Mathematical Society %J Trudy Moskovskogo matematičeskogo obŝestva %D 1961 %P 437 %V 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/MMO_1961_10_a10/ %G ru %F MMO_1961_10_a10