Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{SF_1982__25_134579, author = {N. Hindman}, title = {Minimal ideals and cancellation in {{\ss}N.}}, journal = {Semigroup forum}, pages = {291--310}, publisher = {mathdoc}, volume = {25}, year = {1982}, zbl = {0499.22002}, url = {http://geodesic.mathdoc.fr/item/SF_1982__25_134579/} }
N. Hindman. Minimal ideals and cancellation in ßN.. Semigroup forum, Tome 25 (1982), pp. 291-310. http://geodesic.mathdoc.fr/item/SF_1982__25_134579/