An example of two non-isomorphic finite subdirectly irreducible bands generating the same variety of bands.
Schein, B.M.
Semigroup forum, Tome 4 (1972), p. 365-366 / Harvested from Göttinger Digitalisierungszentrum
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Publié le : 1972-01-01
EUDML-ID : urn:eudml:doc:133918 
@article{GDZPPN001248545,
     title = {An example of two non-isomorphic finite subdirectly irreducible bands  generating the same variety of bands.},
     journal = {Semigroup forum},
     volume = {4},
     year = {1972},
     pages = {365-366},
     zbl = {0261.20049},
     url = {http://dml.mathdoc.fr/item/GDZPPN001248545}
}

Schein, B.M. An example of two non-isomorphic finite subdirectly irreducible bands  generating the same variety of bands.. Semigroup forum, Tome 4 (1972) pp. 365-366. http://gdmltest.u-ga.fr/item/GDZPPN001248545/