@article{05692265, title = {Positive solutions for some beam equation boundary value problems.}, journal = {Boundary Value Problems [electronic only]}, volume = {2009}, year = {2009}, doi = {10.1155/2009/393259}, zbl = {1196.34032}, language = {en}, url = {http://dml.mathdoc.fr/item/05692265} }
Liu, Jinhui; Xu, Weiya. Positive solutions for some beam equation boundary value problems.. Boundary Value Problems [electronic only], Tome 2009 (2009) . doi : 10.1155/2009/393259. http://gdmltest.u-ga.fr/item/05692265/