%0 Journal Article
%A V. Ya. Ivrii
%T Conditions for the correctness in Gevrey classes of the Cauchy problem for nonstrictly hyperbolic operators
%J Doklady Akademii Nauk
%D 1975
%P 775-777
%V 221
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1975_221_4_a5/
%G ru
%F DAN_1975_221_4_a5