@article{GDZPPN001261681,
title = {On left regular and left duo poe-semigroups.},
journal = {Semigroup forum},
volume = {44},
year = {1992},
pages = {306-313},
zbl = {0756.06007},
url = {http://dml.mathdoc.fr/item/GDZPPN001261681}
}
Kehayopulu, N. On left regular and left duo poe-semigroups.. Semigroup forum, Tome 44 (1992) pp. 306-313. http://gdmltest.u-ga.fr/item/GDZPPN001261681/