%0 Journal Article %A Chen, Yun %A Yan, Baoqiang %A Zhang, Lili %T Positive solutions for singular three-point boundary-value problems with sign changing nonlinearities depending on \(x'\) %J Electronic journal of differential equations %D 2007 %V 2007 %U http://geodesic.mathdoc.fr/item/EJDE_2007__2007__a1/ %G en %F EJDE_2007__2007__a1