@article{JRAM_1962__211_150557,
     author = {L. Collatz},
     title = {Potenzbilder endlicher {Gruppen.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {169--175},
     publisher = {mathdoc},
     volume = {211},
     year = {1962},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1962__211_150557/}
}