http://trade.ec.europa.eu/doclib/docs/2018/october/tradoc_157468.pdf
https://www.cer.eu/sites/default/files/insight_SL_5.11.19_2.pdf
https://www.theafricareport.com/238938/energy-buoyed-by-eni-italy-looks-to-africa-free-itself-from-russian-supply/
https://blogs.sussex.ac.uk/uktpo/2017/09/01/the-eu-regulatory-magnet/