%0 Journal Article
%A V. G. Romanov
%T Inverse problems for hyperbolic equations and energy inequalities
%J Doklady Akademii Nauk
%D 1978
%P 541-544
%V 242
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1978_242_3_a9/
%G ru
%F DAN_1978_242_3_a9