@article{GDZPPN001258818,
title = {Maximal subsemilattices of the full transformation semigroup.},
journal = {Semigroup forum},
volume = {33},
year = {1986},
pages = {245-250},
zbl = {0613.20042},
url = {http://dml.mathdoc.fr/item/GDZPPN001258818}
}
Crvenkovic, S.; Kunze, M. Maximal subsemilattices of the full transformation semigroup.. Semigroup forum, Tome 33 (1986) pp. 245-250. http://gdmltest.u-ga.fr/item/GDZPPN001258818/