@article{01780361, title = {Critical point theorems.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {30}, year = {2002}, pages = {429-438}, doi = {10.1155/S0161171202011249}, zbl = {1009.58005}, language = {en}, url = {http://dml.mathdoc.fr/item/01780361} }
Boukhrisse, H.; Moussaoui, M. Critical point theorems.. International Journal of Mathematics and Mathematical Sciences, Tome 30 (2002) pp. 429-438. doi : 10.1155/S0161171202011249. http://gdmltest.u-ga.fr/item/01780361/