TY  - JOUR
AU  - A. Lasota
TI  - On two-point boundary value problems for systems of ordinary non-linear, first-order differential equations
JO  - Annales Polonici Mathematici
PY  - 1974
SP  - 391
EP  - 396
VL  - 29
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/ap-29-4-391-396/
DO  - 10.4064/ap-29-4-391-396
LA  - en
ID  - 10_4064_ap_29_4_391_396
ER  -