%0 Journal Article
%A S. M. Ponomarev
%T An ill-posed problem in the nonlinear theory of waves
%J Doklady Akademii Nauk
%D 1986
%P 58-63
%V 288
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1986_288_1_a12/
%G ru
%F DAN_1986_288_1_a12