@article{01739762,
title = {The lower and upper solutions method for first order differential inclusions with nonlinear boundary conditions.},
journal = {JIPAM. Journal of Inequalities in Pure \& Applied Mathematics [electronic only]},
volume = {3},
year = {2002},
zbl = {1003.34013},
language = {en},
url = {http://dml.mathdoc.fr/item/01739762}
}
Benchohra, M.; Ntouyas, S.K. The lower and upper solutions method for first order differential inclusions with nonlinear boundary conditions.. JIPAM. Journal of Inequalities in Pure & Applied Mathematics [electronic only], Tome 3 (2002) . http://gdmltest.u-ga.fr/item/01739762/