@article{1195515884,
author = {Sakai, Koukichi},
title = {Characterization of extremely amenable semigroups with a unique invariant mean},
journal = {Proc. Japan Acad. Ser. A Math. Sci.},
volume = {58},
number = {5},
year = {1982},
pages = { 357-360},
language = {en},
url = {http://dml.mathdoc.fr/item/1195515884}
}
Sakai, Koukichi. Characterization of extremely amenable semigroups with a unique invariant mean. Proc. Japan Acad. Ser. A Math. Sci., Tome 58 (1982) no. 5, pp. 357-360. http://gdmltest.u-ga.fr/item/1195515884/