@article{GDZPPN001251201,
title = {Polynomial functions over commutative semigroups.},
journal = {Semigroup forum},
volume = {12},
year = {1976},
pages = {109-118},
zbl = {0338.20089},
url = {http://dml.mathdoc.fr/item/GDZPPN001251201}
}
Kowol, G.; Mitsch, H. Polynomial functions over commutative semigroups.. Semigroup forum, Tome 12 (1976) pp. 109-118. http://gdmltest.u-ga.fr/item/GDZPPN001251201/