%0 Journal Article
%A V. A. Il'in
%T The method of Fourier for an hyperbolic equation with discontinuous coefficients
%J Doklady Akademii Nauk
%D 1962
%P 21-24
%V 142
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1962_142_1_a4/
%G ru
%F DAN_1962_142_1_a4