@article{MAN_1985__270_182979,
     author = {Henning Wiebers},
     title = {5-Shaped {Bifurcation} {Curves} of {Nonlinear} {Elliptic} {Boundary} {Value} {Problems.}},
     journal = {Mathematische Annalen},
     pages = {555--570},
     publisher = {mathdoc},
     volume = {270},
     year = {1985},
     zbl = {0544.35015},
     url = {http://geodesic.mathdoc.fr/item/MAN_1985__270_182979/}
}