TY  - JOUR
AU  - Yu. A. Ryabov
TI  - Estimate for the region of convergence of periodic series solutions of differential equations with a~small parameter. The case of no resonance
JO  - Izvestiâ vysših učebnyh zavedenij. Matematika
PY  - 1959
SP  - 202
EP  - 212
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IVM_1959_2_a20/
LA  - ru
ID  - IVM_1959_2_a20
ER  -