Equivalences, a-semigroups and a-congruences.
Pei, H.
Semigroup forum, Tome 48 (1994), p. 49-58 / Harvested from Göttinger Digitalisierungszentrum
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Publié le : 1994-01-01
EUDML-ID : urn:eudml:doc:135333 
@article{GDZPPN001263536,
     title = {Equivalences, a-semigroups and a-congruences.},
     journal = {Semigroup forum},
     volume = {48},
     year = {1994},
     pages = {49-58},
     zbl = {0804.20046},
     url = {http://dml.mathdoc.fr/item/GDZPPN001263536}
}

Pei, H. Equivalences, a-semigroups and a-congruences.. Semigroup forum, Tome 48 (1994) pp. 49-58. http://gdmltest.u-ga.fr/item/GDZPPN001263536/