
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/index.php?id=340&L=0&tx_news_pi1%5Bnews%5D=3569&tx_news_pi1%5Bcontroller%5D=News&tx_news_pi1%5Baction%5D=detail&cHash=d26f1f115fd9e4efe0c4ae0efcba57a2

http://www.europarl.europa.eu/sides/getDoc.do?pubRef=-%2F%2FEP%2F%2FNONSGML%2BCOMPARL%2BPE-602.995%2B01%2BDOC%2BPDF%2BV0%2F%2FEN