
https://www.politico.eu/article/european-parliament-harassment-intimidation-abuse/

https://blogs.lse.ac.uk/europpblog/2022/11/22/governing-the-eu-in-an-age-of-division/

https://www.instituteforgovernment.org.uk/sites/default/files/publications/IfG_Brexit_customs_WEB.pdf