@article{AIHPC_1986__3_2_77_0,
author = {Szulkin, Andrzej},
title = {Minimax principles for lower semicontinuous functions and applications to nonlinear boundary value problems},
journal = {Annales de l'I.H.P. Analyse non lin\'eaire},
volume = {3},
year = {1986},
pages = {77-109},
mrnumber = {837231},
zbl = {0612.58011},
language = {en},
url = {http://dml.mathdoc.fr/item/AIHPC_1986__3_2_77_0}
}
Szulkin, Andrzej. Minimax principles for lower semicontinuous functions and applications to nonlinear boundary value problems. Annales de l'I.H.P. Analyse non linéaire, Tome 3 (1986) pp. 77-109. http://gdmltest.u-ga.fr/item/AIHPC_1986__3_2_77_0/
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