https://www.linkiesta.it/2020/05/macron-merkel-piano-iniziativa-500-miliardi/
http://blogs.lse.ac.uk/europpblog/2018/11/09/germanys-non-rebalancing-of-its-mercantilist-model/?fbclid=IwAR27iG5mvfm7OhdEvLvAgSDfPWaVzY7AgWp2WCZ278P3NblPgDgEqqWDkGI
http://www.assemblee-nationale.fr/15/propositions/pion0542.asp
http://www.europarl.europa.eu/ftu/pdf/en/FTU_5.9.1.pdf