https://www.gazeta.ru/comments/2017/12/28_a_11561696.shtml
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.radiosvoboda.org/a/28945769.html
https://www.inopressa.ru/article/29Dec2017/dailybeast/kgb.html
http://www.kasparov.ru/material.php?id=5A462801E9835
https://ru.krymr.com/a/28943727.html
https://ru.krymr.com/a/28944034.html
http://ru.valdaiclub.com/a/highlights/rossiya-aziatskii-paradox/
https://www.inopressa.ru/article/28Dec2017/wsj/west.html