
https://www.imperial.ac.uk/news/196137/crunching-numbers-coronavirus/

http://www.inegalites.fr/spip.php?page=analyse&id_article=2289&id_rubrique=64&id_mot=30&id_groupe=9

https://www.europarl.europa.eu/resources/library/media/20201020RES89705/20201020RES89705.pdf