@article{EJDE_2012__2012__a86,
     author = {Li,  Haitao and Kong,  Xiangshan and Yu,  Changtian},
     title = {Existence of three non-negative solutions for a three-point boundary-value problem of nonlinear fractional differential equations},
     journal = {Electronic journal of differential equations},
     year = {2012},
     volume = {2012},
     zbl = {1261.34008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2012__2012__a86/}
}