
https://www.ui.se/globalassets/ui.se-eng/publications/sceeus/russia-china-energy-relations-since-24-february.pdf

https://openeurope.org.uk/today/blog/what-would-a-no-deal-after-the-transition-period-look-like/

https://www.esri.ie/system/files/publications/SUSTAT117.pdf