%0 Journal Article %A L. Máté %T On the semigroup of operators in a Fr\'echet space %J Doklady Akademii Nauk %D 1962 %P 1247-1250 %V 142 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1962_142_6_a7/ %G ru %F DAN_1962_142_6_a7