
https://www.investigate-europe.eu/posts/congo-brazzaville-european-oil-companies-petronor-perenco-secret-interests-with-ruling-family

https://www.elibrary.imf.org/downloadpdf/book/9798400224119/CH004.xml

https://www.alternatives-economiques.fr//feu-vert-conseil-constitutionnel-ceta-une-occasion-manquee/00079877