https://ecipe.org/publications/the-gini-trade-index-what-can-we-learn-from-a-new-trade-indicator/
https://www.econstor.eu/bitstream/10419/266146/1/1820832732.pdf
https://www.wto.org/english/news_e/pres18_e/pr820_e.htm
https://www.ui.se/globalassets/ui.se-eng/publications/sceeus/russia-china-energy-relations-since-24-february.pdf