@article{CTGDC_1989__30_4_349_0, author = {Macdonald, John L. and Stone, Art}, title = {The natural number bialgebra}, journal = {Cahiers de Topologie et G\'eom\'etrie Diff\'erentielle Cat\'egoriques}, pages = {349--363}, publisher = {Dunod \'editeur, publi\'e avec le concours du CNRS}, volume = {30}, number = {4}, year = {1989}, mrnumber = {1036348}, zbl = {0698.18004}, language = {en}, url = {http://www.numdam.org/item/CTGDC_1989__30_4_349_0/} }