TY  - JOUR
AU  - V. N. Laptinskii
TI  - A study of the stability of linear periodic differential systems by the method of variation of a parameter
JO  - Differencialʹnye uravneniâ
PY  - 1976
SP  - 1715
EP  - 1718
VL  - 12
IS  - 9
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1976_12_9_a19/
LA  - ru
ID  - DE_1976_12_9_a19
ER  -