
https://static.rusi.org/special-report-202204-operation-z-web.pdf

https://www.japantimes.co.jp/opinion/2023/04/09/commentary/world-commentary/soviet-era-oppression/

https://watson.brown.edu/costsofwar/files/cow/imce/people/Walkup%20Jayes_War%20Paradigm%20Paper_2022_02_08.pdf