
https://blogs.lse.ac.uk/brexit/2021/01/11/article-16-of-the-ireland-northern-ireland-protocol-offers-no-quick-fix/

https://static.europeanchamber.com.cn/upload/medianews/attachments/European_Chamber_Trade_War_Survey_Results_and_Analysis_Fall_2019[24].pdf

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