@article{00645174,
title = {On some two-point boundary value problems for two-dimensional systems of ordinary differential equations.},
journal = {Georgian Mathematical Journal},
volume = {1},
year = {1994},
pages = {303-314},
doi = {10.1007/BF02254678},
zbl = {0804.34024},
language = {en},
url = {http://dml.mathdoc.fr/item/00645174}
}
Lomtatidze, A. On some two-point boundary value problems for two-dimensional systems of ordinary differential equations.. Georgian Mathematical Journal, Tome 1 (1994) pp. 303-314. doi : 10.1007/BF02254678. http://gdmltest.u-ga.fr/item/00645174/