
https://wiiw.ac.at/cefta-trade-and-growth-patterns-fifteen-years-since-establishment-dlp-6508.pdf

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

https://www.ips-journal.eu/topics/democracy-and-society/the-end-of-the-island-of-peace-6910/