https://www.inopressa.ru/article/18Feb2020/handelsblatt/manturov.html
On natural gas, Europe has prevailed over Russia, decisively.
https://www.kp.ru/daily/27091.4/4163529/
https://www.rbc.ru/newspaper/2020/02/06/5e315d9d9a7947378825eb07
https://www.kommersant.ru/doc/4243629
https://www.mk.ru/economics/2020/01/21/rosneft-prodolzhaet-pokoryat-germaniyu.html