
http://trade.ec.europa.eu/doclib/docs/2018/october/tradoc_157468.pdf

https://www.nytimes.com/2017/05/29/opinion/britain-brexit-economy.html?_r=1

https://www.theafricareport.com/238938/energy-buoyed-by-eni-italy-looks-to-africa-free-itself-from-russian-supply/