TY  - JOUR
AU  - V. N. Laptinskii
AU  - S. V. Podolyan
TI  - Periodic solutions of an $n$th order vector differential equation
JO  - Differencialʹnye uravneniâ
PY  - 1988
SP  - 1704
EP  - 1709
VL  - 24
IS  - 10
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1988_24_10_a5/
LA  - ru
ID  - DE_1988_24_10_a5
ER  -