%0 Journal Article
%A V. Ya. Ivrii
%T Correctness of the Cauchy problem in~Gevrey classes for nonstrictly hyperbolic operators
%J Sbornik. Mathematics
%D 1975
%P 365-387
%V 25
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SM_1975_25_3_a2/
%G en
%F SM_1975_25_3_a2