@article{GDZPPN001253530,
title = {Extension of additive functionals and semicharacters on commutative semigroups.},
journal = {Semigroup forum},
volume = {18},
year = {1979},
pages = {293-306},
zbl = {0425.20050},
url = {http://dml.mathdoc.fr/item/GDZPPN001253530}
}
Kranz, P. Extension of additive functionals and semicharacters on commutative semigroups.. Semigroup forum, Tome 18 (1979) pp. 293-306. http://gdmltest.u-ga.fr/item/GDZPPN001253530/