https://www.ips-journal.eu/topics/economy-and-ecology/how-to-get-away-with-sanctions-russian-style-6918/
https://www.theguardian.com/politics/2017/sep/04/uk-trade-deals-after-brexit-theresa-may-eu
https://www.brookings.edu/articles/the-changing-role-of-the-us-dollar/