https://lenta.ru/articles/2020/12/30/petroleum/
https://www.bbc.com/russian/features-55474266
https://www.mk.ru/social/2020/12/29/rossiyskaya-voennaya-razvedka-radikalno-izmenila-metody.html
https://novayagazeta.ru/articles/2020/12/26/88551-god-shpiona
https://www.bbc.com/russian/features-55439046
https://www.radiosvoboda.org/a/news-kolumbija-rosija-dyplomaty-shpyhunstvo/31014189.html
https://www.inopressa.ru/article/21Dec2020/spiegel/spionage.html
https://novayagazeta.ru/articles/2020/12/19/88449-hoteli-by-vzlomat-vzlomali
https://www.bbc.com/russian/news-55344921
https://www.kommersant.ru/doc/4614995