%0 Journal Article
%A R. K. Romanovskii
%T Tests for boundedness of the solutions of a~certain mixed boundary value problem for a~second order hyperbolic equation in a~Banach space
%J Izvestiâ vysših učebnyh zavedenij. Matematika
%D 1969
%P 60-66
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IVM_1969_1_a9/
%G ru
%F IVM_1969_1_a9