TY  - JOUR
AU  - V. D. Ponomarev
TI  - Existence of a solution of a two-point boundary value problem for a system of first-order ordinary differential equations
JO  - Differencialʹnye uravneniâ
PY  - 1983
SP  - 1880
EP  - 1884
VL  - 19
IS  - 11
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1983_19_11_a6/
LA  - ru
ID  - DE_1983_19_11_a6
ER  -