@article{05626157, title = {Existence of solutions for fourth-order four-point boundary value problem on time scales.}, journal = {Boundary Value Problems [electronic only]}, volume = {2009}, year = {2009}, doi = {10.1155/2009/491952}, zbl = {1181.34108}, language = {en}, url = {http://dml.mathdoc.fr/item/05626157} }
Yang, Dandan; Li, Gang; Bai, Chuanzhi. Existence of solutions for fourth-order four-point boundary value problem on time scales.. Boundary Value Problems [electronic only], Tome 2009 (2009) . doi : 10.1155/2009/491952. http://gdmltest.u-ga.fr/item/05626157/