@article{MZ_1972__129_171843,
     author = {Floris Takens},
     title = {Some {Remarks} on the {B\"ohme-Berger} {Bifurcation} {Theorem.}},
     journal = {Mathematische Zeitschrift},
     pages = {359--364},
     publisher = {mathdoc},
     volume = {129},
     year = {1972},
     zbl = {0237.47032},
     url = {http://geodesic.mathdoc.fr/item/MZ_1972__129_171843/}
}