%0 Journal Article %A Shibata, Tetsutaro %T Multiparameter Variational Eigenvalue Problems With Indefinite Nonlinearity %J Canadian journal of mathematics %D 1997 %P 1066-1088 %V 49 %N 5 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1997-053-0/ %R 10.4153/CJM-1997-053-0 %F 10_4153_CJM_1997_053_0