https://ukandeu.ac.uk/wp-content/uploads/2020/06/Mind-the-values-gap.pdf
https://www.ips-journal.eu/index.php?id=293&L=0&tx_news_pi1%5Bnews%5D=4405&tx_news_pi1%5Bcontroller%5D=News&tx_news_pi1%5Baction%5D=detail&utm_source=newsletter&utm_medium=email&utm_campaign=en_791_20200605&cHash=931e8a12b80124885130def2e783b8db
https://blogs.lse.ac.uk/europpblog/2021/10/22/de-facto-differentiation-in-action-why-poland-will-stay-in-the-eu-with-or-without-the-blessing-of-brussels/
https://www.ilpost.it/2022/09/14/sicurezza-voto-italiani-estero/