Transformation semigroup diagram and the ...-relation.
Levi, I.
Semigroup forum, Tome 48 (1994), p. 138-151 / Harvested from Göttinger Digitalisierungszentrum
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Publié le : 1994-01-01
EUDML-ID : urn:eudml:doc:135306 
@article{GDZPPN001263242,
     title = {Transformation semigroup diagram and the ...-relation.},
     journal = {Semigroup forum},
     volume = {48},
     year = {1994},
     pages = {138-151},
     zbl = {0796.20059},
     url = {http://dml.mathdoc.fr/item/GDZPPN001263242}
}

Levi, I. Transformation semigroup diagram and the ...-relation.. Semigroup forum, Tome 48 (1994) pp. 138-151. http://gdmltest.u-ga.fr/item/GDZPPN001263242/