@article{EJDE_2010__2010__a112,
     author = {Ji, Caisheng and Yan, Baoqiang},
     title = {Positive solutions for second-order singular three-point boundary-value problems with sign-changing nonlinearities},
     journal = {Electronic Journal of Differential Equations},
     publisher = {mathdoc},
     volume = {2010},
     year = {2010},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2010__2010__a112/}
}