Semigroups all but one of whose proper subsemigroups are groups.
Gard, J.R.
Semigroup forum, Tome 11 (1975), p. 215-219 / Harvested from Göttinger Digitalisierungszentrum
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Publié le : 1975-01-01
EUDML-ID : urn:eudml:doc:134113 
@article{GDZPPN001250620,
     title = {Semigroups all but one of whose proper subsemigroups are groups.},
     journal = {Semigroup forum},
     volume = {11},
     year = {1975},
     pages = {215-219},
     zbl = {0299.20041},
     url = {http://dml.mathdoc.fr/item/GDZPPN001250620}
}

Gard, J.R. Semigroups all but one of whose proper subsemigroups are groups.. Semigroup forum, Tome 11 (1975) pp. 215-219. http://gdmltest.u-ga.fr/item/GDZPPN001250620/