@article{GDZPPN001262467, title = {Subdirectly irreducible right commutative semigroups.}, journal = {Semigroup forum}, volume = {46}, year = {1993}, pages = {187-198}, zbl = {0803.20042}, url = {http://dml.mathdoc.fr/item/GDZPPN001262467} }
Nagy, A. Subdirectly irreducible right commutative semigroups.. Semigroup forum, Tome 46 (1993) pp. 187-198. http://gdmltest.u-ga.fr/item/GDZPPN001262467/