http://www.assemblee-nationale.fr/14/pdf/rap-info/i4551.pdf
https://theconversation.com/quien-puede-convertirse-en-ciudadano-espanol-vericuetos-legales-para-obtener-la-nacionalidad-223771
https://www.ohchr.org/en/statements/2022/09/human-rights-concerns-related-forced-displacement-ukraine#:~:text=OHCHR%20has%20documented%20that%20men,ill%2Dtreatment%20and%20enforced%20disappearance.
https://theconversation.com/europeans-have-more-flexible-views-on-how-to-respond-to-irregular-migrants-than-policymakers-think-new-research-253473