TY  - JOUR
AU  - V. N. Karp
TI  - On the existence and uniqueness of a periodic solution of a non-linear equation of hyperbolic type
JO  - Izvestiâ vysših učebnyh zavedenij. Matematika
PY  - 1963
SP  - 43
EP  - 50
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IVM_1963_5_a6/
LA  - ru
ID  - IVM_1963_5_a6
ER  -