@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/