@article{ELMA_1950__5_140538,
     author = {A. Stoll},
     title = {Die {Steinersche} {Hypozykloide.}},
     journal = {Elemente der Mathematik},
     pages = {55--60},
     publisher = {mathdoc},
     volume = {5},
     year = {1950},
     zbl = {0036.22206},
     url = {http://geodesic.mathdoc.fr/item/ELMA_1950__5_140538/}
}