%0 Journal Article %A M. A. Evgrafov %A A. D. Solov'ev %T On a class of reversible operators in a ring of analytic functions %J Doklady Akademii Nauk %D 1957 %P 1153-1154 %V 114 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1957_114_6_a3/ %G ru %F DAN_1957_114_6_a3