https://www.brookings.edu/articles/an-update-on-the-efficacy-of-sanctions-against-russia/
https://www.politico.eu/article/shaky-grounds-secret-slipshod-evidence-eu-use-sanction-russia-oligarchs/
https://www.fmprc.gov.cn/mfa_eng/xw/wjbxw/202511/t20251127_11761653.html
https://www.osce.org/files/f/documents/0/6/39516.pdf