%0 Journal Article
%A A. S. Leonov
%T Calculation of the values of unbounded operators by the averaging method
%J Doklady Akademii Nauk
%D 1977
%P 23-26
%V 235
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1977_235_1_a3/
%G ru
%F DAN_1977_235_1_a3