TY  - JOUR
AU  - V. D. Ponomarev
TI  - Necessary and sufficient conditions for the solvability of a multipoint boundary value problem for a system of first order ordinary differential equations
JO  - Differencialʹnye uravneniâ
PY  - 1978
SP  - 929
EP  - 931
VL  - 14
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1978_14_5_a21/
LA  - ru
ID  - DE_1978_14_5_a21
ER  -