https://www.linkiesta.it/2020/05/cosa-ha-davvero-deciso-la-corte-tedesca-bce-quantitative-easing/
https://www.bruegel.org/wp-content/uploads/2021/05/PC-2021-11-ecofin-210521.pdf
http://www.ladocumentationfrancaise.fr/var/storage/rapports-publics/174000710.pdf
https://www.socialeurope.eu/2017/07/european-welfare-states-perform/