http://www.lawyersforbritain.org/eu-deal-financial-liabilities.shtml
https://www.globalwitness.org/en/campaigns/corruption-and-money-laundering/undermining-sanctions/
http://blogs.lse.ac.uk/brexit/2017/07/05/bloody-difficult-britain-has-already-blown-its-chances-of-a-good-deal-from-the-eu27/
https://ec.europa.eu/info/sites/info/files/com-2018-890-final.pdf