@article{CMUC_1989__30_4_a12,
     author = {Lembcke, J\"orn},
     title = {On infinitely many solutions of a semilinear elliptic eigenvalue problem},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {727--731},
     publisher = {mathdoc},
     volume = {30},
     number = {4},
     year = {1989},
     mrnumber = {1045901},
     zbl = {0711.35046},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1989__30_4_a12/}
}