https://www.politico.eu/article/pedro-sanchez-spain-election-parliament-2023-catalan-independence/
https://www.socialeurope.eu/five-theses-for-a-new-left
http://www.ips-journal.eu/regions/europe/article/show/europes-values-wont-defend-themselves-2599/
http://oegfe.at/wordpress/wp-content/uploads/2017/05/OEGfE_Policy_Brief-2017.13.pdf