https://www.bbc.com/russian/news-46634112
https://www.gazeta.ru/social/2018/12/19/12100009.shtml
https://day.kyiv.ua/ru/article/podrobnosti/svyatoe-delo-i-kremlevskaya-agentura
http://www.kasparov.ru/material.php?id=5C18D718B884D
http://www.kasparov.ru/material.php?id=5C18D730B3882
https://www.kommersant.ru/doc/3834336
The once-terrifying Russian military intelligence agency has been so sloppy and prone to fumbling that you have to ask: Why does a strongman brought up in the K.G.B. put up with it?
https://www.nytimes.com/2018/12/17/opinion/putins-keystone-spies.html