%0 Journal Article %A N. V. Krylov %T Parabolic equations on the plane and semigroups %J Differencialʹnye uravneniâ %D 1969 %P 2216-2224 %V 5 %N 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1969_5_12_a7/ %G ru %F DE_1969_5_12_a7