@article{1183499598, author = {Silverman, L. L.}, title = {Products of N\"orlund transformations}, journal = {Bull. Amer. Math. Soc.}, volume = {43}, number = {12}, year = {1937}, pages = { 95-101}, language = {en}, url = {http://dml.mathdoc.fr/item/1183499598} }
Silverman, L. L. Products of Nörlund transformations. Bull. Amer. Math. Soc., Tome 43 (1937) no. 12, pp. 95-101. http://gdmltest.u-ga.fr/item/1183499598/