https://www.gazeta.ru/business/2019/07/05/12478063.shtml
https://www.rbc.ru/newspaper/2019/07/05/5d1de6c59a79475585ea976f
Nuclear unit aboard top-secret vessel ‘sealed off’ says minister after blaze that left 14 dead
https://www.gazeta.ru/army/2019/07/03/12474025.shtml
https://www.inopressa.ru/article/03Jul2019/welt/spy.html
https://www.kommersant.ru/doc/4018987
https://www.svoboda.org/a/30032694.html