https://www.sciencemag.org/news/2021/06/these-ancient-weights-helped-create-europe-s-first-free-market-more-3000-years-ago?utm_campaign=news_daily_2021-06-28&et_rid=682362580&et_cid=3828153
http://blogs.lse.ac.uk/europpblog/2018/11/09/germanys-non-rebalancing-of-its-mercantilist-model/?fbclid=IwAR27iG5mvfm7OhdEvLvAgSDfPWaVzY7AgWp2WCZ278P3NblPgDgEqqWDkGI
https://socialeurope.eu/a-european-solidarity-pact