@article{1183425614, author = {Rider, Paul R.}, title = {The minimum area between a curve and its caustic}, journal = {Bull. Amer. Math. Soc.}, volume = {27}, number = {9-10}, year = {1921}, pages = { 279-284}, language = {en}, url = {http://dml.mathdoc.fr/item/1183425614} }
Rider, Paul R. The minimum area between a curve and its caustic. Bull. Amer. Math. Soc., Tome 27 (1921) no. 9-10, pp. 279-284. http://gdmltest.u-ga.fr/item/1183425614/