%0 Journal Article
%A A. G. Tumanyan
%T A priori estimates and Fredholm criteria for a class of regular hypoelliptic operators
%J Matematičeskie trudy
%D 2022
%P 220-240
%V 25
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MT_2022_25_2_a9/
%G ru
%F MT_2022_25_2_a9