@article {MR1903561,
	title = {On idempotent generated semigroups},
	journal = {Semigroup Forum},
	volume = {65},
	number = {1},
	year = {2002},
	note = {n/a},
	pages = {138{\textendash}140},
	abstract = {n/a},
	issn = {0037-1912},
	doi = {10.1007/s002330010089},
	url = {https://doi.org/10.1007/s002330010089},
	author = {Ara{\'u}jo, Jo{\~a}o}
}
