Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MAN_1973__202_162401, author = {Andrew Adler and James Hamilton}, title = {Invariant {Means} via the {Ultrapower.}}, journal = {Mathematische Annalen}, pages = {71--76}, publisher = {mathdoc}, volume = {202}, year = {1973}, zbl = {0235.43001}, url = {http://geodesic.mathdoc.fr/item/MAN_1973__202_162401/} }
Andrew Adler; James Hamilton. Invariant Means via the Ultrapower.. Mathematische Annalen, Tome 202 (1973), pp. 71-76. http://geodesic.mathdoc.fr/item/MAN_1973__202_162401/