%0 Journal Article
%A N. A. Shananin
%T On local solvability of equations of quasi-principal type
%J Sbornik. Mathematics
%D 1975
%P 458-470
%V 26
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SM_1975_26_4_a2/
%G en
%F SM_1975_26_4_a2