https://www.ecb.europa.eu/press/key/date/2012/html/sp120726.en.html
https://www.ecb.europa.eu/pub/pdf/ecbu/eb201703.en.pdf?ea7747ab0ef3b038300a8d51a3a95313
https://www.socialeurope.eu/coronavirus-crisis-now-is-the-hour-of-modern-monetary-theory
https://www.faz.net/aktuell/politik/inland/gastbeitrag-wolfgang-schaeuble-aus-eigener-staerke-16846887.html?utm_source=POLITICO.EU&utm_campaign=a80ea0a946-EMAIL_CAMPAIGN_2020_07_09_05_10&utm_medium=email&utm_term=0_10959edeb5-a80ea0a946-190380769