
https://www.linkiesta.it/2022/08/sandro-gozi-intervista-renew-italia/

https://ukandeu.ac.uk/wp-content/uploads/2022/02/UKICE-British-Politics-after-Brexit.pdf

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/