https://lansinginstitute.org/2021/10/12/russian-intelligence-focus-in-bulgaria/
http://region.expert/newpeople/
https://jamestown.org/program/how-new-are-the-new-people-in-russias-parliament/
https://novayagazeta.ru/articles/2021/10/06/novye-podpolshchiki
https://www.kp.ru/daily/28335.5/4480309/
https://carnegie.ru/commentary/85414
https://snob.ru/profile/400176/blog/1001472