@article{1255454997,
author = {Luther, Indar S.},
title = {Uniqueness of the invariant mean on an abelian semigroup},
journal = {Illinois J. Math.},
volume = {3},
number = {1},
year = {1959},
pages = { 28-44},
language = {en},
url = {http://dml.mathdoc.fr/item/1255454997}
}
Luther, Indar S. Uniqueness of the invariant mean on an abelian semigroup. Illinois J. Math., Tome 3 (1959) no. 1, pp. 28-44. http://gdmltest.u-ga.fr/item/1255454997/