%0 Journal Article
%A I. A. Kipriyanov
%T The fractional differentiation operator and powers of elliptic operators
%J Doklady Akademii Nauk
%D 1960
%P 238-241
%V 131
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1960_131_2_a4/
%G ru
%F DAN_1960_131_2_a4