@article{GDZPPN001264362, title = {Abundant semigroups with a medical idempotent.}, journal = {Semigroup forum}, volume = {51}, year = {1995}, pages = {247-262}, zbl = {0834.20059}, url = {http://dml.mathdoc.fr/item/GDZPPN001264362} }
Jing, F. Abundant semigroups with a medical idempotent.. Semigroup forum, Tome 51 (1995) pp. 247-262. http://gdmltest.u-ga.fr/item/GDZPPN001264362/