@article{1183414352,
author = {Haskell, M. W.},
title = {On the introduction of the notion of hyperbolic functions},
journal = {Bull. Amer. Math. Soc.},
volume = {2},
number = {3},
year = {1895},
pages = { 155-159},
language = {en},
url = {http://dml.mathdoc.fr/item/1183414352}
}
Haskell, M. W. On the introduction of the notion of hyperbolic functions. Bull. Amer. Math. Soc., Tome 2 (1895) no. 3, pp. 155-159. http://gdmltest.u-ga.fr/item/1183414352/