@article{1028989009, author = {Shields, Allen}, title = {The $n$-cube as a product semigroup.}, journal = {Michigan Math. J.}, volume = {4}, number = {2}, year = {1957}, pages = { 165-166}, language = {en}, url = {http://dml.mathdoc.fr/item/1028989009} }
Shields, Allen. The $n$-cube as a product semigroup.. Michigan Math. J., Tome 4 (1957) no. 2, pp. 165-166. http://gdmltest.u-ga.fr/item/1028989009/