%0 Journal Article
%A V. N. Karp
%T The existence and uniqueness of a periodic solution of a non-linear problem concerning the forced vibrations of a string
%J Doklady Akademii Nauk
%D 1960
%P 515-518
%V 133
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1960_133_3_a3/
%G ru
%F DAN_1960_133_3_a3