https://carnegieeurope.eu/strategiceurope/90555
https://ec.europa.eu/epsc/sites/epsc/files/epsc_brief_passerelles_2.pdf?utm_source=POLITICO.EU&utm_campaign=042aa4f2be-EMAIL_CAMPAIGN_2019_01_16_02_43&utm_medium=email&utm_term=0_10959edeb5-042aa4f2be-190380769
https://www.ips-journal.eu/topics/european-integration/orban-is-playing-the-long-game-7303/
https://www.socialeurope.eu/facing-europes-huge-challenges