@article{05791609,
title = {Multiplicity of solutions for gradient systems using Landesman-Lazer conditions.},
journal = {Abstract and Applied Analysis},
volume = {2010},
year = {2010},
doi = {10.1155/2010/237826},
zbl = {1207.35126},
language = {en},
url = {http://dml.mathdoc.fr/item/05791609}
}
da Silva, Edcarlos D. Multiplicity of solutions for gradient systems using Landesman-Lazer conditions.. Abstract and Applied Analysis, Tome 2010 (2010) . doi : 10.1155/2010/237826. http://gdmltest.u-ga.fr/item/05791609/