https://www.dw.com/ru/kommentarij-operacii-rossijskih-specsluzhb-priznak-ih-slabosti/a-57424635
https://www.politico.eu/article/russias-travel-ban-against-david-sassoli-raises-eyebrows/
https://www.inopressa.ru/article/04May2021/politico/euparliament.html
https://www.radiosvoboda.org/a/ukrayina-nato-rosiya/31236738.html
https://www.rupor.info/news/173963/razvedka-ssha-opublikovala-doklad-ob-ugrozah-so-storony-rossii
https://www.radiosvoboda.org/a/g7-brygtanija-usa-ukrajina/31237935.html
https://www.inopressa.ru/article/29Apr2021/lefigaro/tango.html