@article{JRAM_1985__360_152745,
     author = {Reiner Lauterbach},
     title = {Hopf bifurcation from a turning point.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {136--152},
     publisher = {mathdoc},
     volume = {360},
     year = {1985},
     zbl = {0555.34037},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1985__360_152745/}
}