@article{05629325, title = {A global description of the positive solutions of sublinear second-order discrete boundary value problems.}, journal = {Advances in Difference Equations [electronic only]}, volume = {2009}, year = {2009}, doi = {10.1155/2009/671625}, zbl = {1177.39006}, language = {en}, url = {http://dml.mathdoc.fr/item/05629325} }
Ma, Ruyun; Xu, Youji; Gao, Chenghua. A global description of the positive solutions of sublinear second-order discrete boundary value problems.. Advances in Difference Equations [electronic only], Tome 2009 (2009) . doi : 10.1155/2009/671625. http://gdmltest.u-ga.fr/item/05629325/