@article{GDZPPN001250663, title = {Basic study of ....-semigroups and their homomorphisms II.}, journal = {Semigroup forum}, volume = {11}, year = {1975}, pages = {250-261}, zbl = {0299.20052}, url = {http://dml.mathdoc.fr/item/GDZPPN001250663} }
Tamura, T. Basic study of ....-semigroups and their homomorphisms II.. Semigroup forum, Tome 11 (1975) pp. 250-261. http://gdmltest.u-ga.fr/item/GDZPPN001250663/