@article{1183494561, author = {Hollcroft, T. R.}, title = {The bitangential curve}, journal = {Bull. Amer. Math. Soc.}, volume = {37}, number = {12}, year = {1931}, pages = { 82-84}, language = {en}, url = {http://dml.mathdoc.fr/item/1183494561} }
Hollcroft, T. R. The bitangential curve. Bull. Amer. Math. Soc., Tome 37 (1931) no. 12, pp. 82-84. http://gdmltest.u-ga.fr/item/1183494561/