@article{GDZPPN001253069,
title = {Some properties of E-m semigroups.},
journal = {Semigroup forum},
volume = {18},
year = {1979},
pages = {153-162},
zbl = {0404.20053},
url = {http://dml.mathdoc.fr/item/GDZPPN001253069}
}
Varisco, A.; Cherubini, Spoletini, A. Some properties of E-m semigroups.. Semigroup forum, Tome 18 (1979) pp. 153-162. http://gdmltest.u-ga.fr/item/GDZPPN001253069/