@article{05897644, title = {Existence of positive solutions to a boundary value problem for a delayed nonlinear fractional differential system.}, journal = {Boundary Value Problems [electronic only]}, volume = {2011}, year = {2011}, doi = {10.1155/2011/475126}, zbl = {1219.34103}, language = {en}, url = {http://dml.mathdoc.fr/item/05897644} }
Ouyang, Zigen; Chen, Yuming; Zou, Shuliang. Existence of positive solutions to a boundary value problem for a delayed nonlinear fractional differential system.. Boundary Value Problems [electronic only], Tome 2011 (2011) . doi : 10.1155/2011/475126. http://gdmltest.u-ga.fr/item/05897644/