https://www.touslesjourscurieux.fr/cetait-le-temps-de-la-grippe-espagnole/
https://www.politico.com/f/?id=00000180-874f-dd36-a38c-c74f98520000
http://www.bta.bg/en/c/DF/id/1731928
https://www.openglobalrights.org/using-cross-movement-collaborations-to-tackle-human-rights-complexities/?lang=Spanish