TY  - JOUR
AU  - B. M. Arkhipov
AU  - A. Ya. Khokhryakov
TI  - Strictly positive solutions of periodic systems of ordinary differential equations
JO  - Differencialʹnye uravneniâ
PY  - 1973
SP  - 1945
EP  - 1955
VL  - 9
IS  - 11
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1973_9_11_a2/
LA  - ru
ID  - DE_1973_9_11_a2
ER  -