TY  - JOUR
AU  - K. G. Valēēv
AU  - M. Ya. Vazhgovskaya
TI  - An investigation of the stability of the solutions of a system of second order linear differential equations with periodic coefficients
JO  - Differencialʹnye uravneniâ
PY  - 1971
SP  - 955
EP  - 960
VL  - 7
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1971_7_6_a0/
LA  - ru
ID  - DE_1971_7_6_a0
ER  -