@article{05692268, title = {The existence of countably many positive solutions for nonlinear }, journal = {Boundary Value Problems [electronic only]}, volume = {2009}, year = {2009}, doi = {10.1155/2009/572512}, zbl = {1228.34041}, language = {en}, url = {http://dml.mathdoc.fr/item/05692268} }
Ji, Yude; Guo, Yanping. The existence of countably many positive solutions for nonlinear . Boundary Value Problems [electronic only], Tome 2009 (2009) . doi : 10.1155/2009/572512. http://gdmltest.u-ga.fr/item/05692268/