@article{GDZPPN002223031,
title = {Infinitely Many Critical Points for Functionals which are not Even and Applications to Superlinear Boundary Value Problems.},
journal = {Manuscripta mathematica},
volume = {31},
year = {1980},
pages = {335-364},
zbl = {0456.35031},
url = {http://dml.mathdoc.fr/item/GDZPPN002223031}
}
Struwe, Michael. Infinitely Many Critical Points for Functionals which are not Even and Applications to Superlinear Boundary Value Problems.. Manuscripta mathematica, Tome 31 (1980) pp. 335-364. http://gdmltest.u-ga.fr/item/GDZPPN002223031/