%0 Journal Article %A Henning Wiebers %T 5-Shaped Bifurcation Curves of Nonlinear Elliptic Boundary Value Problems. %J Mathematische Annalen %D 1985 %P 555-570 %V 270 %I mathdoc %U http://geodesic.mathdoc.fr/item/MAN_1985__270_182979/ %F MAN_1985__270_182979