@article{ELMA_1951__6_140563,
     author = {Fr. Fabricius-Bjerre},
     title = {The {Osculating} {Conics} of {Steiner`s} {Hypocycloid.}},
     journal = {Elemente der Mathematik},
     pages = {29--30},
     publisher = {mathdoc},
     volume = {6},
     year = {1951},
     zbl = {0042.40201},
     url = {http://geodesic.mathdoc.fr/item/ELMA_1951__6_140563/}
}