TY  - JOUR
AU  - V. I. Zubov
TI  - On the theory of the existence of solutions of boundary value problems for systems of differential equations
JO  - Differencialʹnye uravneniâ
PY  - 1970
SP  - 629
EP  - 631
VL  - 6
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1970_6_4_a3/
LA  - ru
ID  - DE_1970_6_4_a3
ER  -