https://www.igi-global.com/pdf.aspx?tid=319023&ptid=278239&ctid=4&oa=true&isxn=9781683183105
https://www.socialeurope.eu/leaving-the-energy-charter-treaty-its-not-so-easy
https://www.brookings.edu/articles/europes-messy-russian-gas-divorce/
https://www.politico.eu/article/copa-cogeca-farmering-lobby-europe/