@article{00639829,
title = {A multiplicity result for a class of superlinear elliptic problems.},
journal = {Portugaliae Mathematica. Nova S\'erie},
volume = {51},
year = {1994},
pages = {219-229},
zbl = {0814.35038},
language = {en},
url = {http://dml.mathdoc.fr/item/00639829}
}
Micheletti, Anna Maria; Pistoia, Angela. A multiplicity result for a class of superlinear elliptic problems.. Portugaliae Mathematica. Nova Série, Tome 51 (1994) pp. 219-229. http://gdmltest.u-ga.fr/item/00639829/