@article {12383,
	title = {Modeling frameworks for the multi-skill resource-constrained project scheduling problem: A theoretical and empirical comparison},
	journal = {International Transactions in Operations Research},
	volume = {26},
	year = {2019},
	pages = {946-967},
	author = {Bernardo F. Almeida and Correia, Isabel and Francisco Saldanha-da-Gama}
}
