
https://www.brookings.edu/articles/payment-systems-changing-role-from-economic-growth-to-the-new-foreign-policy-lever/

https://www.economiesuisse.ch/de/artikel/wirtschaftsmission-usa-staerkere-zusammenarbeit-bei-raumfahrt-und-ruestung

https://ukandeu.ac.uk/study-of-federalism-uk-eu-relationship/?mc_cid=ef569320c7&mc_eid=815b1928ec