https://www.bbc.com/russian/news-58837389
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.levada.ru/2021/10/05/itogi-vyborov/
https://www.rosbalt.ru/blogs/2021/10/05/1924631.html