%0 Journal Article
%A A. A. Novruzov
%A I. T. Mamedov
%T On $R$-identity of second-order elliptic and parabolic operators
%J Doklady Akademii Nauk
%D 1980
%P 1314-1317
%V 253
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1980_253_6_a6/
%G ru
%F DAN_1980_253_6_a6