@article{GDZPPN001256939,
title = {Rees quotients of N-semigroups.},
journal = {Semigroup forum},
volume = {30},
year = {1984},
pages = {259-270},
zbl = {0553.20039},
url = {http://dml.mathdoc.fr/item/GDZPPN001256939}
}
Clarke, J. Rees quotients of N-semigroups.. Semigroup forum, Tome 30 (1984) pp. 259-270. http://gdmltest.u-ga.fr/item/GDZPPN001256939/