@article{GDZPPN001265296,
title = {Catalan monoids, monoids of local endomorphisms, and their presentations.},
journal = {Semigroup forum},
volume = {53},
year = {1996},
pages = {351-368},
zbl = {0862.20049},
url = {http://dml.mathdoc.fr/item/GDZPPN001265296}
}
Solomon, A. Catalan monoids, monoids of local endomorphisms, and their presentations.. Semigroup forum, Tome 53 (1996) pp. 351-368. http://gdmltest.u-ga.fr/item/GDZPPN001265296/