https://www.vedomosti.ru/politics/articles/2017/12/30/746984-verhovnii-sud-priznal-zakonnim
http://www.kasparov.ru/material.php?id=5A474A04C17FC
http://www.kasparov.ru/material.php?id=5A473E9A6AC27
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://politeka.net/reading/561811-natsbezpeka-ukrayini-peremogi-porazki-ta-stsenariyi-na-2018-rik/
https://www.inopressa.ru/article/29Dec2017/dailybeast/kgb.html
https://www.kommersant.ru/doc/3511567
https://nv.ua/opinion/garin/informatsija-massovoho-porazhenija-2442691.html
https://ru.krymr.com/a/28945807.html
http://www.kasparov.ru/material.php?id=5A46597C8AD7A