The ascending varietal chain of a variety of semigroups.
Petrov, A.N.
Semigroup forum, Tome 33 (1986), p. 157-162 / Harvested from Göttinger Digitalisierungszentrum
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Publié le : 1986-01-01
EUDML-ID : urn:eudml:doc:134865 
@article{GDZPPN001258737,
     title = {The ascending varietal chain of a variety of semigroups.},
     journal = {Semigroup forum},
     volume = {33},
     year = {1986},
     pages = {157-162},
     zbl = {0614.20042},
     url = {http://dml.mathdoc.fr/item/GDZPPN001258737}
}

Petrov, A.N. The ascending varietal chain of a variety of semigroups.. Semigroup forum, Tome 33 (1986) pp. 157-162. http://gdmltest.u-ga.fr/item/GDZPPN001258737/