@article{01821302, title = {Elliptic problems with nonmonotone discontinuities at resonance.}, journal = {Abstract and Applied Analysis}, volume = {7}, year = {2002}, pages = {497-507}, doi = {10.1155/S1085337502203061}, zbl = {1033.35027}, language = {en}, url = {http://dml.mathdoc.fr/item/01821302} }
Nikolaos, Halidias. Elliptic problems with nonmonotone discontinuities at resonance.. Abstract and Applied Analysis, Tome 7 (2002) pp. 497-507. doi : 10.1155/S1085337502203061. http://gdmltest.u-ga.fr/item/01821302/