http://www.cadtm.org/IMG/pdf/Alexander_Sack_DETTE_ODIEUSE.pdf
https://onlinelibrary.wiley.com/doi/10.1111/ecaf.12565
https://www.ipp.eu/wp-content/uploads/2018/10/cepremap-macro-budget2019.pdf
https://energy.ec.europa.eu/system/files/2022-05/COM_2022_230_1_EN_ACT_part1_v5.pdf