https://www.kommersant.ru/doc/3967235
https://ru.krymr.com/a/fsb-kgb-agents/29938107.html
https://www.gazeta.ru/army/2019/05/12/12351319.shtml
https://www.radiosvoboda.org/a/chornohorija-perevorot-vyrok/29930855.html
https://www.gazeta.ru/business/2019/05/07/12342289.shtml
https://www.gazeta.ru/politics/2019/05/06_a_12340507.shtml
https://jamestown.org/program/is-russia-really-cutting-its-military-spending/
http://www.kasparov.ru/material.php?id=5CCFD80F588F2