@article{05847809, title = {Multiple positive solutions for second-order }, journal = {Boundary Value Problems [electronic only]}, volume = {2011}, year = {2011}, doi = {10.1155/2011/867615}, zbl = {1210.34136}, language = {en}, url = {http://dml.mathdoc.fr/item/05847809} }
Li, Yongkun; Zhang, Tianwei. Multiple positive solutions for second-order . Boundary Value Problems [electronic only], Tome 2011 (2011) . doi : 10.1155/2011/867615. http://gdmltest.u-ga.fr/item/05847809/