@article{EJDE_2009__2009__a130,
     author = {Shibata,  Tetsutaro},
     title = {Inverse eigenvalue problems for semilinear elliptic equations},
     journal = {Electronic journal of differential equations},
     year = {2009},
     volume = {2009},
     zbl = {1178.35281},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2009__2009__a130/}
}