https://www.socialeurope.eu/democracy-without-glue
https://ukandeu.ac.uk/wp-content/uploads/2020/03/Parliament-and-Brexit-report.pdf
http://cep.lse.ac.uk/pubs/download/ea044.pdf
https://www.catalannews.com/politics/item/european-court-of-justice-grants-immunity-to-jailed-catalan-mep-elect-oriol-junqueras