@article{GDZPPN002035820, title = {An unexpected appearance of Steiner's hypocycloid.}, journal = {Aequationes mathematicae}, volume = {30}, year = {1986}, pages = {239-251}, zbl = {0586.51020}, url = {http://dml.mathdoc.fr/item/GDZPPN002035820} }
Craats, Jan van de. An unexpected appearance of Steiner's hypocycloid.. Aequationes mathematicae, Tome 30 (1986) pp. 239-251. http://gdmltest.u-ga.fr/item/GDZPPN002035820/