A characterization of ...-classes of semigroups as partial groupoids.
Clifford, A.H. ; Hall, T.E.
Semigroup forum, Tome 7 (1974), p. 246-254 / Harvested from Göttinger Digitalisierungszentrum
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Publié le : 1974-01-01
EUDML-ID : urn:eudml:doc:133980 
@article{GDZPPN001249215,
     title = {A characterization of ...-classes of semigroups as partial groupoids.},
     journal = {Semigroup forum},
     volume = {7},
     year = {1974},
     pages = {246-254},
     zbl = {0262.20067},
     url = {http://dml.mathdoc.fr/item/GDZPPN001249215}
}

Clifford, A.H.; Hall, T.E. A characterization of ...-classes of semigroups as partial groupoids.. Semigroup forum, Tome 7 (1974) pp. 246-254. http://gdmltest.u-ga.fr/item/GDZPPN001249215/