@article{JRAM_1985__359_152732,
     author = {Bernold Fiedler},
     title = {An index for global {Hopf} bifurcation in parabolic systems.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {1--36},
     publisher = {mathdoc},
     volume = {359},
     year = {1985},
     zbl = {0554.35010},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1985__359_152732/}
}