@article{01402590,
title = {A second eigenvalue bound for the Dirichlet-Schr\"odinger equation with a radially symmetric potential.},
journal = {Electronic Journal of Differential Equations (EJDE) [electronic only]},
volume = {2000},
year = {2000},
zbl = {0941.35017},
language = {en},
url = {http://dml.mathdoc.fr/item/01402590}
}
Haile, Craig. A second eigenvalue bound for the Dirichlet-Schrödinger equation with a radially symmetric potential.. Electronic Journal of Differential Equations (EJDE) [electronic only], Tome 2000 (2000) . http://gdmltest.u-ga.fr/item/01402590/