
https://www.bancaditalia.it/media/approfondimenti/2019/pop-bari/approfondimenti-popBari.pdf

https://www.voanews.com/a/china-cancels-23-loans-to-africa-amid-debt-trap-debate-/6716397.html

https://www.bloomberg.com/news/articles/2018-04-04/europe-s-growth-engine-is-running-out-of-steam-chart