TY  - JOUR
AU  - L. V. Trigubovich
TI  - The periodic solutions of second and third order linear systems
JO  - Differencialʹnye uravneniâ
PY  - 1971
SP  - 1007
EP  - 1011
VL  - 7
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1971_7_6_a6/
LA  - ru
ID  - DE_1971_7_6_a6
ER  -