%0 Journal Article %A A. V. Abramyan %A V. A. Nogin %T Fractional powers of second-order differential operators with %J Doklady Akademii Nauk %D 1995 %P 295-298 %V 341 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1995_341_3_a0/ %G ru %F DAN_1995_341_3_a0