https://www.socialeurope.eu/breaking-the-chains-subcontracting-in-the-eu
https://www.frbsf.org/wp-content/uploads/wp2020-17.pdf
https://www.wilsoncenter.org/sites/default/files/media/uploads/documents/Venezuela%20Desk_FranciscoMonaldi_1.pdf
https://theconversation.com/por-que-los-algoritmos-se-llaman-algoritmos-229639