@article{GDZPPN001265563,
title = {Semigroups of order preserving mappings on a finite chain: a new class of divisors.},
journal = {Semigroup forum},
volume = {54},
year = {1997},
pages = {230-236},
zbl = {0868.20049},
url = {http://dml.mathdoc.fr/item/GDZPPN001265563}
}
Fernandes, V.H. Semigroups of order preserving mappings on a finite chain: a new class of divisors.. Semigroup forum, Tome 54 (1997) pp. 230-236. http://gdmltest.u-ga.fr/item/GDZPPN001265563/