Commutative monoids all of whose principal ideals are projective.
Kilp, Mati
Semigroup forum, Tome 7 (1974), p. 334-339 / Harvested from Göttinger Digitalisierungszentrum
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Publié le : 1974-01-01
EUDML-ID : urn:eudml:doc:133991 
@article{GDZPPN001249339,
     title = {Commutative monoids all of whose principal ideals are projective.},
     journal = {Semigroup forum},
     volume = {7},
     year = {1974},
     pages = {334-339},
     zbl = {0267.20053},
     url = {http://dml.mathdoc.fr/item/GDZPPN001249339}
}

Kilp, Mati. Commutative monoids all of whose principal ideals are projective.. Semigroup forum, Tome 7 (1974) pp. 334-339. http://gdmltest.u-ga.fr/item/GDZPPN001249339/