https://cdn2.nextinpact.com/medias/rapport-villani-ia.pdf
https://www.eia.gov/energyexplained/us-energy-facts/imports-and-exports.php
https://www.prospectmagazine.co.uk/magazine/margaret-macmillan-black-death-covid-19-lessons-history
https://www.alter-eu.org/press-releases/2018/02/20-0