%0 Journal Article
%A V. S. Rabinovich
%T A~priori estimates and the Fredholm property for a~class of pseudo\-differential operators
%J Sbornik. Mathematics
%D 1973
%P 191-206
%V 21
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SM_1973_21_2_a1/
%G en
%F SM_1973_21_2_a1