%0 Journal Article
%A È. Muhamadiev
%T On the invertibility of elliptic partial differential operators
%J Doklady Akademii Nauk
%D 1972
%P 1292-1295
%V 205
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1972_205_6_a7/
%G ru
%F DAN_1972_205_6_a7