
https://www.epsu.org/sites/default/files/article/files/Going%20Public_EPSU-PSIRU%20Report%202019%20-%20EN.pdf

https://www.nzz.ch/international/radikales-regime-wie-sich-der-kreml-unter-wladimir-putin-radikalisierte-ld.1755674?reduced=true

https://english.nv.ua/opinion/putin-might-be-looking-for-a-ceasefire-to-rebuild-his-army-50382702.html