@article{1183421039,
author = {Eisenhart, Luther Pfahler},
title = {Differential Invariants},
journal = {Bull. Amer. Math. Soc.},
volume = {17},
number = {3},
year = {1910},
pages = { 140-150},
language = {en},
url = {http://dml.mathdoc.fr/item/1183421039}
}
Eisenhart, Luther Pfahler. Differential Invariants. Bull. Amer. Math. Soc., Tome 17 (1910) no. 3, pp. 140-150. http://gdmltest.u-ga.fr/item/1183421039/