@article{AIHPC_1986__3_6_431_0,
author = {Mawhin, Jean and Willem, M.},
title = {Critical points of convex perturbations of some indefinite quadratic forms and semi-linear boundary value problems at resonance},
journal = {Annales de l'I.H.P. Analyse non lin\'eaire},
volume = {3},
year = {1986},
pages = {431-453},
mrnumber = {870864},
zbl = {0678.35091},
language = {en},
url = {http://dml.mathdoc.fr/item/AIHPC_1986__3_6_431_0}
}
Mawhin, J.; Willem, M. Critical points of convex perturbations of some indefinite quadratic forms and semi-linear boundary value problems at resonance. Annales de l'I.H.P. Analyse non linéaire, Tome 3 (1986) pp. 431-453. http://gdmltest.u-ga.fr/item/AIHPC_1986__3_6_431_0/
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