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@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/} }
Fr. Fabricius-Bjerre. The Osculating Conics of Steiner`s Hypocycloid.. Elemente der Mathematik, Tome 6 (1951), pp. 29-30. http://geodesic.mathdoc.fr/item/ELMA_1951__6_140563/