%0 Journal Article
%A S. Ya. L'vin
%T On a class of degenerate differential equations of higher order
%J Doklady Akademii Nauk
%D 1975
%P 42-45
%V 223
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1975_223_1_a9/
%G ru
%F DAN_1975_223_1_a9