https://www.fmprc.gov.cn/mfa_eng/zxxx_662805/202302/t20230224_11030713.html
https://rusi.org/sites/default/files/by_parity_and_presence_final_web_version.pdf
https://www.slideshare.net/SITEStockholm/the-russian-economy-under-putin-91262698
https://publications.parliament.uk/pa/ld201719/ldselect/ldintrel/53/53.pdf