
https://theconversation.com/radicalizacion-violenta-similitudes-y-diferencias-en-la-evolucion-del-ira-y-eta-196509

http://www.ladocumentationfrancaise.fr/pages-europe/pe000071-interrogations-sur-l-avenir-de-la-politique-de-cohesion-apres-2020-par-marjorie-jouen/article

https://www.opendemocracy.net/can-europe-make-it/nick-rider/catalonia-spain-referendum-there-is-more-than-one-nationalism-in-iberian-peninsula