%0 Journal Article
%A A. V. Bitsadze
%T The influence of the minor terms on the correctness of the formulation of characteristic problems for hyperbolic systems of second order
%J Doklady Akademii Nauk
%D 1975
%P 31-34
%V 225
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1975_225_1_a6/
%G ru
%F DAN_1975_225_1_a6