@article{05692259, title = {An approximation approach to eigenvalue intervals for singular boundary value problems with sign changing and superlinear nonlinearities.}, journal = {Boundary Value Problems [electronic only]}, volume = {2009}, year = {2009}, doi = {10.1155/2009/103867}, zbl = {1200.34015}, language = {en}, url = {http://dml.mathdoc.fr/item/05692259} }
Lü, Haishen; Agarwal, Ravi P.; O'Regan, Donal. An approximation approach to eigenvalue intervals for singular boundary value problems with sign changing and superlinear nonlinearities.. Boundary Value Problems [electronic only], Tome 2009 (2009) . doi : 10.1155/2009/103867. http://gdmltest.u-ga.fr/item/05692259/