@article{GDZPPN001255630, title = {On two classes of hereditarily finitely based semigroup identities.}, journal = {Semigroup forum}, volume = {24}, year = {1982}, pages = {9-34}, zbl = {0496.20042}, url = {http://dml.mathdoc.fr/item/GDZPPN001255630} }
Pollák, G. On two classes of hereditarily finitely based semigroup identities.. Semigroup forum, Tome 24 (1982) pp. 9-34. http://gdmltest.u-ga.fr/item/GDZPPN001255630/