https://www.socialeurope.eu/exchanging-glances-serbia-seduces-illiberal-america
https://geopoliticalfutures.com//pdfs/the-russian-mystery-geopoliticalfutures-com.pdf
https://www.bloomberg.com/news/articles/2020-11-28/the-energy-project-trump-can-t-stop-seeks-ways-to-finish-the-job
http://www.css.ethz.ch/content/dam/ethz/special-interest/gess/cis/center-for-securities-studies/pdfs/CSSAnalyse225-EN.pdf