%0 Journal Article
%A Ya. A. Roitberg
%T Boundary and mixed problems for general hyperbolic systems in a complete scale of spaces of Sobolev type
%J Doklady Akademii Nauk
%D 1991
%P 820-824
%V 318
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1991_318_4_a11/
%G ru
%F DAN_1991_318_4_a11