%0 Journal Article
%A V. N. Karp
%T On the existence and uniqueness of a periodic solution of a non-linear equation of hyperbolic type
%J Izvestiâ vysših učebnyh zavedenij. Matematika
%D 1963
%P 43-50
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IVM_1963_5_a6/
%G ru
%F IVM_1963_5_a6