https://www.bruegel.org/sites/default/files/2024-02/PB%2003%202024.pdf
https://www.global-counsel.co.uk/sites/default/files/analysis/insight/download/Hard%20and%20Soft%20Political%20Risk.pdf
https://unctad.org/system/files/official-document/diaeiainf2021d1_en.pdf
https://www.bruegel.org/policy-brief/european-union-gas-survival-plan-2023