TY  - JOUR
AU  - M. N. Yakovlev
TI  - Periodic solutions of second-order systems with one-sided restrictions to the growth of the right-hand side with respect to the first derivative
JO  - Zapiski Nauchnykh Seminarov POMI
PY  - 1992
SP  - 190
EP  - 203
VL  - 202
UR  - http://geodesic.mathdoc.fr/item/ZNSL_1992_202_a11/
LA  - ru
ID  - ZNSL_1992_202_a11
ER  -