@article{EJDE_1999__1999__a36,
     author = {Ma,  Ruyun},
     title = {Positive solutions of a nonlinear three-point boundary-value problem},
     journal = {Electronic journal of differential equations},
     year = {1999},
     volume = {1999},
     zbl = {0926.34009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_1999__1999__a36/}
}