
https://www.instituteforgovernment.org.uk/sites/default/files/publications/IfG_views-eu-27-v5_WEB.pdf

https://www.politico.eu/article/pedro-sanchez-spain-election-parliament-2023-catalan-independence/

http://www.eba.europa.eu/documents/10180/2101654/Letter+to+MEPs+on+the+request+to+investigate+a+possible+BUL+under+Article+17+of+Regulation+%28EU%29%20No+10932010+-+24092018.pdf