https://www.vedomosti.ru/politics/articles/2017/12/30/746984-verhovnii-sud-priznal-zakonnim
https://www.kommersant.ru/doc/3502556
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://ru.krymr.com/a/28945910.html
https://www.radiosvoboda.org/a/28945769.html
https://www.inopressa.ru/article/29Dec2017/dailybeast/kgb.html
http://www.kasparov.ru/material.php?id=5A4239226148D
https://www.kommersant.ru/doc/3512206
https://www.gazeta.ru/business/2017/12/28/11566376.shtml