https://www.eca.europa.eu/Lists/ECADocuments/REW19_09/REW_EU-defence_EN.pdf
http://www.ips-journal.eu/regions/europe/article/show/a-banking-union-without-unity-2181/
https://www.alternatives-economiques.fr//michel-husson/grece-lacharnement/00079174
https://www.socialeurope.eu/2017/06/eurozones-hidden-strength/