@article{EJDE_2004__2004__a170,
     author = {Pereira, Marcone C.},
     title = {Generic simplicity of eigenvalues for a {Dirichlet} problem of the bilaplacian operator},
     journal = {Electronic Journal of Differential Equations},
     publisher = {mathdoc},
     volume = {2004},
     year = {2004},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2004__2004__a170/}
}