@article{01370617, title = {An Ambrosetti-Prodi-type problem for an elliptic system of equations via monotone iteration method and Leray-Schauder degree theory.}, journal = {Abstract and Applied Analysis}, volume = {1}, year = {1996}, pages = {137-152}, doi = {10.1155/S1085337596000061}, zbl = {0932.35069}, language = {en}, url = {http://dml.mathdoc.fr/item/01370617} }
de Morais Filho, D.C. An Ambrosetti-Prodi-type problem for an elliptic system of equations via monotone iteration method and Leray-Schauder degree theory.. Abstract and Applied Analysis, Tome 1 (1996) pp. 137-152. doi : 10.1155/S1085337596000061. http://gdmltest.u-ga.fr/item/01370617/