https://www.corriere.it/politica/22_novembre_18/di-maio-nuova-vita-sara-inviato-speciale-ue-golfo-persico-trattare-prezzo-petrolio-gas-0805b148-6720-11ed-b05a-06c1012dfe21.shtml
http://www.ips-journal.eu/regions/europe/article/show/a-banking-union-without-unity-2181/
https://www.ips-journal.eu/topics/european-integration/europe-needs-to-spend-its-money-better-7243/