@article{GDZPPN002031892,
title = {Green's L-relation for semigroups and compactifications.},
journal = {Aequationes mathematicae},
volume = {19},
year = {1979},
pages = {123-133},
zbl = {0442.20051},
url = {http://dml.mathdoc.fr/item/GDZPPN002031892}
}
Magill, Kenneth D. Jr. Green's L-relation for semigroups and compactifications.. Aequationes mathematicae, Tome 19 (1979) pp. 123-133. http://gdmltest.u-ga.fr/item/GDZPPN002031892/