Some examples of clans.
Friedberg, M.
Semigroup forum, Tome 4 (1972), p. 156-164 / Harvested from Göttinger Digitalisierungszentrum
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Publié le : 1972-01-01
EUDML-ID : urn:eudml:doc:133887 
@article{GDZPPN001248227,
     title = {Some examples of clans.},
     journal = {Semigroup forum},
     volume = {4},
     year = {1972},
     pages = {156-164},
     zbl = {0259.22005},
     url = {http://dml.mathdoc.fr/item/GDZPPN001248227}
}

Friedberg, M. Some examples of clans.. Semigroup forum, Tome 4 (1972) pp. 156-164. http://gdmltest.u-ga.fr/item/GDZPPN001248227/