@article{1183415770, author = {Murray, D. A.}, title = {Calculus of Finite Differences}, journal = {Bull. Amer. Math. Soc.}, volume = {6}, number = {3}, year = {1899}, pages = { 313-316}, language = {en}, url = {http://dml.mathdoc.fr/item/1183415770} }
Murray, D. A. Calculus of Finite Differences. Bull. Amer. Math. Soc., Tome 6 (1899) no. 3, pp. 313-316. http://gdmltest.u-ga.fr/item/1183415770/