
https://medium.com/the-capital/the-future-of-bitcoin-will-not-look-like-you-think-it-will-edd1239a07d4

https://sipri.org/sites/default/files/2017-09/yb17-summary-eng.pdf

https://www.adb.org/sites/default/files/publication/754716/nonperforming-loans-asia-europe-causes-impacts.pdf