https://www.bruegel.org/wp-content/uploads/2021/10/Storms-Ahead_AGH_chp6.pdf
https://reliefweb.int/report/democratic-republic-congo/final-report-group-experts-democratic-republic-congo-s2024432-enarruzh
https://larouchepub.com/eiw/public/2014/eirv41n08-20140221/34-35_4108.pdf
https://www.project-syndicate.org/commentary/moodys-downgrade-china-sovereign-debt-rating-by-yu-yongding-2017-06