@article{01716638, title = {Existence of solutions for non-necessarily cooperative systems involving Schr\"odinger operators.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {25}, year = {2001}, pages = {725-736}, doi = {10.1155/S016117120100401X}, zbl = {1004.35037}, language = {en}, url = {http://dml.mathdoc.fr/item/01716638} }
Cardoulis, Laure. Existence of solutions for non-necessarily cooperative systems involving Schrödinger operators.. International Journal of Mathematics and Mathematical Sciences, Tome 25 (2001) pp. 725-736. doi : 10.1155/S016117120100401X. http://gdmltest.u-ga.fr/item/01716638/