https://www.bundesverfassungsgericht.de/SharedDocs/Pressemitteilungen/DE/2020/bvg20-032.html
https://www.euronews.com/2018/09/26/after-three-decades-and-trillions-in-investment-east-germany-still-trails-west
https://www.linkiesta.it/2020/05/cosa-ha-davvero-deciso-la-corte-tedesca-bce-quantitative-easing/