@article{EJDE_2007__2007__a130,
     author = {Shibata,  Tetsutaro},
     title = {Inverse spectral problems for nonlinear {Sturm-Liouville} problems},
     journal = {Electronic journal of differential equations},
     year = {2007},
     volume = {2007},
     zbl = {1140.34307},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2007__2007__a130/}
}