@article{EJDE_2009__2009__a61,
     author = {Xu, Jiafa and Yang, Zhilin},
     title = {Three positive solutions for a system of singular generalized {Lidstone} problems},
     journal = {Electronic Journal of Differential Equations},
     publisher = {mathdoc},
     volume = {2009},
     year = {2009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2009__2009__a61/}
}