%0 Journal Article
%A F. E. Lomovtsev
%A N. J. Yurchuk
%T The Cauchy problem for second order hyperbolic operator differential equations
%J Differencialʹnye uravneniâ
%D 1976
%P 2242-2250
%V 12
%N 12
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1976_12_12_a13/
%G ru
%F DE_1976_12_12_a13