http://library.fes.de/pdf-files/wiso/14397.pdf
https://static1.squarespace.com/static/58ed40453a04116f46e8d99b/t/615493df7e967732e8b2592f/1632932843444/Better+Together.pdf
https://www.documentcloud.org/documents/21416178-note-confidentiel-defense-du-12-mai-2016-ciemgg-russie
https://capx.co/is-the-west-in-a-cold-war-with-opec/