@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/