@article{05847724,
title = {Critical point theorems and Ekeland type variational principle with applications.},
journal = {Fixed Point Theory and Applications [electronic only]},
volume = {2011},
year = {2011},
doi = {10.1155/2011/914624},
zbl = {1213.49015},
language = {en},
url = {http://dml.mathdoc.fr/item/05847724}
}
Lin, Lai-Jiu; Wang, Sung-Yu; Ansari, Qamrul Hasan. Critical point theorems and Ekeland type variational principle with applications.. Fixed Point Theory and Applications [electronic only], Tome 2011 (2011) . doi : 10.1155/2011/914624. http://gdmltest.u-ga.fr/item/05847724/