Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{JRAM_1968__232_150882, author = {Hans G\"unzler}, title = {Means over countable semigroups and almost-periodicity in l1.}, journal = {Journal f\"ur die reine und angewandte Mathematik}, pages = {194--206}, publisher = {mathdoc}, volume = {232}, year = {1968}, zbl = {0174.19201}, url = {http://geodesic.mathdoc.fr/item/JRAM_1968__232_150882/} }
Hans Günzler. Means over countable semigroups and almost-periodicity in l1.. Journal für die reine und angewandte Mathematik, Tome 232 (1968), pp. 194-206. http://geodesic.mathdoc.fr/item/JRAM_1968__232_150882/