https://publications.parliament.uk/pa/bills/cbill/2019-2020/0007/20007.pdf
https://theconversation.com/crisis-del-regimen-democratico-la-dominacion-de-los-partidos-politicos-en-espana-226276
https://ukandeu.ac.uk/what-does-polands-parliamentary-election-mean-for-the-eu/