https://publications.parliament.uk/pa/cm201719/cmselect/cmfaff/780/780.pdf
https://www.crisisgroup.org/europe-central-asia/eastern-europe/ukraine/260-peace-ukraine-ii-new-approach-disengagement
http://europa.eu/rapid/press-release_IP-18-463_en.htm
https://www.brookings.edu/articles/payment-systems-changing-role-from-economic-growth-to-the-new-foreign-policy-lever/