%0 Journal Article
%A A. I. Kozhanov
%T Ultraparabolic equations with~operator coefficients at~the~time derivatives
%J The Bulletin of Irkutsk State University. Series Mathematics
%D 2019
%P 120-137
%V 29
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IIGUM_2019_29_a10/
%G en
%F IIGUM_2019_29_a10