
https://ec.europa.eu/commission/sites/beta-political/files/draft_withdrawal_agreement.pdf

https://pism.pl/webroot/upload/files/Biuletyn/PISM%20Bulletin%20no%20174%20(2091)%208%20November%20%202022.pdf

https://ukandeu.ac.uk/study-of-federalism-uk-eu-relationship/?mc_cid=ef569320c7&mc_eid=815b1928ec