TY  - JOUR
AU  - B. S. Kalitin
TI  - On a comparison method for a problem of stability of periodic systems
JO  - Differencialʹnye uravneniâ
PY  - 1987
SP  - 423
EP  - 428
VL  - 23
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1987_23_3_a6/
LA  - ru
ID  - DE_1987_23_3_a6
ER  -