@article{05816476,
title = {The second eigenvalue of the },
journal = {International Journal of Differential Equations},
volume = {2010},
year = {2010},
doi = {10.1155/2010/984671},
zbl = {1207.35235},
language = {en},
url = {http://dml.mathdoc.fr/item/05816476}
}
Parini, Enea. The second eigenvalue of the . International Journal of Differential Equations, Tome 2010 (2010) . doi : 10.1155/2010/984671. http://gdmltest.u-ga.fr/item/05816476/