@article{MZ_1980__173_172988,
     author = {Christian Grillenberger},
     title = {On {Generators} for {Ergodic} {Flowers.}},
     journal = {Mathematische Zeitschrift},
     pages = {283--298},
     publisher = {mathdoc},
     volume = {173},
     year = {1980},
     zbl = {0421.58013},
     url = {http://geodesic.mathdoc.fr/item/MZ_1980__173_172988/}
}