%0 Journal Article %A Yu. T. Sil'chenko %T An evolutionary equation with an operator that generates a nonanalytic semigroup %J Differencialʹnye uravneniâ %D 1979 %P 363-366 %V 15 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1979_15_2_a24/ %G ru %F DE_1979_15_2_a24