@article{05626173,
title = {Infinitely many solutions of strongly indefinite semilinear elliptic systems.},
journal = {Boundary Value Problems [electronic only]},
volume = {2009},
year = {2009},
doi = {10.1155/2009/865408},
zbl = {1179.35112},
language = {en},
url = {http://dml.mathdoc.fr/item/05626173}
}
Chen, Kuan-Ju. Infinitely many solutions of strongly indefinite semilinear elliptic systems.. Boundary Value Problems [electronic only], Tome 2009 (2009) . doi : 10.1155/2009/865408. http://gdmltest.u-ga.fr/item/05626173/