@article{EJDE_2000__2000__a195,
     author = {Carlson, Robert},
     title = {Nonclassical {Sturm-Liouville} problems and {Schr\"odinger} operators on radial trees},
     journal = {Electronic Journal of Differential Equations},
     publisher = {mathdoc},
     volume = {2000},
     year = {2000},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2000__2000__a195/}
}