@article{EJDE_2000__2000__a202,
     author = {Avery, Richard I. and Davis, John M. and Henderson, Johnny},
     title = {Three symmetric positive solutions for {Lidstone} problems by a generalization of the {Leggett-Williams} theorem},
     journal = {Electronic Journal of Differential Equations},
     publisher = {mathdoc},
     volume = {2000},
     year = {2000},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2000__2000__a202/}
}