@article{1183419191,
author = {Ames, L. D.},
title = {Note on the orientation of a secant},
journal = {Bull. Amer. Math. Soc.},
volume = {14},
number = {3},
year = {1907},
pages = { 240-241},
language = {en},
url = {http://dml.mathdoc.fr/item/1183419191}
}
Ames, L. D. Note on the orientation of a secant. Bull. Amer. Math. Soc., Tome 14 (1907) no. 3, pp. 240-241. http://gdmltest.u-ga.fr/item/1183419191/