@article{01557030,
title = {On second order differential inclusions with periodic boundary conditions.},
journal = {Acta Mathematica Universitatis Comenianae. New Series},
volume = {69},
year = {2000},
pages = {173-181},
zbl = {0971.34003},
language = {en},
url = {http://dml.mathdoc.fr/item/01557030}
}
Benchohra, M.; Ntouyas, S.K. On second order differential inclusions with periodic boundary conditions.. Acta Mathematica Universitatis Comenianae. New Series, Tome 69 (2000) pp. 173-181. http://gdmltest.u-ga.fr/item/01557030/