https://focus.ua/world/389121/
https://www.vedomosti.ru/economics/articles/2018/01/15/747720-srok-s-byudzhetnogo-manevra
http://nvo.ng.ru/nvoevents/2018-01-12/2_979_shield.html
https://ru.krymr.com/a/28967327.html
http://www.bbc.com/russian/features-42496353
https://www.kommersant.ru/doc/3515163
A KGB manual showed how valuable—and how treacherous—Russian émigrés could be. Did KGB veteran Vladimir Putin learn those lessons?
https://www.thedailybeast.com/the-kgb-playbook-for-turning-russians-worldwide-into-agents
https://www.inopressa.ru/article/29Dec2017/dailybeast/kgb.html
http://expert.ru/2017/12/29/neftyanuyu-iglu-smenit-nalogovyij-press/
https://www.kommersant.ru/doc/3512389