TY  - JOUR
AU  - B. P. Tkach
TI  - The existence of periodic solutions of nonlinear partial differential equations of neutral type
JO  - Izvestiâ vysših učebnyh zavedenij. Matematika
PY  - 1970
SP  - 112
EP  - 117
IS  - 8
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IVM_1970_8_a14/
LA  - ru
ID  - IVM_1970_8_a14
ER  -