
https://www.ceps.eu/wp-content/uploads/2022/11/next-steps-for-eu-enlargement-forwards-or-backwards.pdf

https://www.ipg-journal.de/interviews/artikel/die-gruene-falle-3380/

https://www.politico.eu/article/carles-puigdemont-catalonia-independence-spain-election-pedro-sanchez-alberto-nunez-feijoo/