@article{00794431, title = {Nonnegative solutions to superlinear problems of generalized Gelfand type.}, journal = {Journal of Applied Mathematics and Stochastic Analysis}, volume = {8}, year = {1995}, pages = {275-290}, doi = {10.1155/S1048953395000256}, zbl = {0831.34029}, language = {en}, url = {http://dml.mathdoc.fr/item/00794431} }
O'Regan, Donal. Nonnegative solutions to superlinear problems of generalized Gelfand type.. Journal of Applied Mathematics and Stochastic Analysis, Tome 8 (1995) pp. 275-290. doi : 10.1155/S1048953395000256. http://gdmltest.u-ga.fr/item/00794431/