@article{1077476007, author = {Kloosterman, H. D.}, title = {Derivatives and finite differences}, journal = {Duke Math. J.}, volume = {17}, number = {1}, year = {1950}, pages = { 169-186}, language = {en}, url = {http://dml.mathdoc.fr/item/1077476007} }
Kloosterman, H. D. Derivatives and finite differences. Duke Math. J., Tome 17 (1950) no. 1, pp. 169-186. http://gdmltest.u-ga.fr/item/1077476007/