@article{GDZPPN001260049,
title = {Product of idempotents in finite full transformation semigroups.},
journal = {Semigroup forum},
volume = {38},
year = {1989},
pages = {295-310},
zbl = {0662.20049},
url = {http://dml.mathdoc.fr/item/GDZPPN001260049}
}
Saito, T. Product of idempotents in finite full transformation semigroups.. Semigroup forum, Tome 38 (1989) pp. 295-310. http://gdmltest.u-ga.fr/item/GDZPPN001260049/