
https://theconversation.com/xi-and-putin-talk-up-growth-of-their-eurasian-bloc-organisation-as-counterweight-to-nato-234100

https://www.brookings.edu/wp-content/uploads/2018/04/workingpaper114-elephantchartrevisited.pdf

https://www.crisisgroup.org/europe-central-asia/eastern-europe/ukraine/261-peace-ukraine-iii-costs-war-donbas