@article{1077376213, author = {Riordan, John}, title = {A functional-difference equation}, journal = {Duke Math. J.}, volume = {33}, number = {1}, year = {1966}, pages = { 23-25}, language = {en}, url = {http://dml.mathdoc.fr/item/1077376213} }
Riordan, John. A functional-difference equation. Duke Math. J., Tome 33 (1966) no. 1, pp. 23-25. http://gdmltest.u-ga.fr/item/1077376213/