https://reclaimfinance.org/site/wp-content/uploads/2020/05/Rapport-Quantitative-easing-le-sale-secret-de-la-BCE-RF.pdf
https://scholar.harvard.edu/files/rogoff/files/ilzetki_reinhart_rogoff_qje_2019_2.pdf
http://www.imf.org/en/News/Articles/2017/05/15/mcs05152017-Germany-Staff-Concluding-Statement-of-the-2017-Article-IV-Mission