On commutative Kleene monoids.
Rupert, C.P.
Semigroup forum, Tome 43 (1991), p. 163-177 / Harvested from Göttinger Digitalisierungszentrum
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Publié le : 1991-01-01
EUDML-ID : urn:eudml:doc:135106 
@article{GDZPPN001261207,
     title = {On commutative Kleene monoids.},
     journal = {Semigroup forum},
     volume = {43},
     year = {1991},
     pages = {163-177},
     zbl = {0762.68048},
     url = {http://dml.mathdoc.fr/item/GDZPPN001261207}
}

Rupert, C.P. On commutative Kleene monoids.. Semigroup forum, Tome 43 (1991) pp. 163-177. http://gdmltest.u-ga.fr/item/GDZPPN001261207/