@article{EJDE_2011__2011__a6,
     author = {Webb,  Jeff R.L.},
     title = {Positive solutions of a boundary value problem with integral boundary conditions},
     journal = {Electronic journal of differential equations},
     year = {2011},
     volume = {2011},
     zbl = {1229.34039},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2011__2011__a6/}
}