A note on idempotents.
Koch, R.J. ; Hildebrant, J.A.
Semigroup forum, Tome 24 (1982), p. 386 / Harvested from Göttinger Digitalisierungszentrum
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Publié le : 1982-01-01
EUDML-ID : urn:eudml:doc:134589 
@article{GDZPPN001255916,
     title = {A note on idempotents.},
     journal = {Semigroup forum},
     volume = {24},
     year = {1982},
     pages = {386-386},
     zbl = {0508.22007},
     url = {http://dml.mathdoc.fr/item/GDZPPN001255916}
}

Koch, R.J.; Hildebrant, J.A. A note on idempotents.. Semigroup forum, Tome 24 (1982) p. 386. http://gdmltest.u-ga.fr/item/GDZPPN001255916/