@article{1029000169, author = {Alexander, Ralph}, title = {Density and digits of sequences of integers.}, journal = {Michigan Math. J.}, volume = {16}, number = {1}, year = {1969}, pages = { 85-92}, language = {en}, url = {http://dml.mathdoc.fr/item/1029000169} }
Alexander, Ralph. Density and digits of sequences of integers.. Michigan Math. J., Tome 16 (1969) no. 1, pp. 85-92. http://gdmltest.u-ga.fr/item/1029000169/