http://altanalyses.org/en/2021/09/13/ever-greater-failure-eu-energy-policy/
https://www.nytimes.com/2021/09/09/us/politics/russia-ransomware-hackers.html
https://theins.ru/opinions/matizen/244867
https://carnegie.ru/commentary/85272
https://www.sueddeutsche.de/politik/cyberangriffe-russland-deutsche-abgeordnete-1.5402942