@article {MR3134187,
	title = {A characterization of adequate semigroups by forbidden subsemigroups},
	journal = {Proc. Roy. Soc. Edinburgh Sect. A},
	volume = {143},
	number = {6},
	year = {2013},
	note = {n/a},
	pages = {1115{\textendash}1122},
	abstract = {n/a},
	issn = {0308-2105},
	doi = {10.1017/S030821051100182X},
	url = {https://doi.org/10.1017/S030821051100182X},
	author = {Ara{\'u}jo, Jo{\~a}o and Kinyon, Michael and Malheiro, Ant{\'o}nio}
}
