%0 Journal Article %A I. D. Evzerov %T Estimates of the resolvent and the domain of definition of fractional powers of abstract differential operators %J Differencialʹnye uravneniâ %D 1985 %P 1616-1618 %V 21 %N 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1985_21_9_a20/ %G ru %F DE_1985_21_9_a20