%0 Journal Article
%A N. N. Frolov
%T On the hypoellipticity of infinite-dimensional differential operators
%J Sbornik. Mathematics
%D 1977
%P 269-278
%V 31
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SM_1977_31_2_a9/
%G en
%F SM_1977_31_2_a9