@article{1183497251,
author = {Whitney, Hassler},
title = {Derivatives, difference quotients, and Taylor's formula},
journal = {Bull. Amer. Math. Soc.},
volume = {40},
number = {12},
year = {1934},
pages = { 89-94},
language = {en},
url = {http://dml.mathdoc.fr/item/1183497251}
}
Whitney, Hassler. Derivatives, difference quotients, and Taylor's formula. Bull. Amer. Math. Soc., Tome 40 (1934) no. 12, pp. 89-94. http://gdmltest.u-ga.fr/item/1183497251/