http://ec.europa.eu/transport/sites/transport/files/pocketbook2016.pdf
https://euractiv.fr/news/pourquoi-lindustrie-automobile-europeenne-est-elle-en-crise/
https://www.imf.org/-/media/Files/Publications/DP/2021/English/EMPSOUPEA.ashx
https://thedocs.worldbank.org/en/doc/1692f2ba2bd6408db82db9eb3894a789-0400072022/original/2022-Global-Gas-Flaring-Tracker-Report.pdf