@article{EJDE_2010__2010__a78,
     author = {Liu, Shu and Jia, Mei and Tian, Yingqiang},
     title = {Existence of positive solutions for boundary-value problems with integral boundary conditions and 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__a78/}
}