https://www.socialeurope.eu/greek-economy-recovering-exiting-crisis
https://blogs.imf.org/2019/04/10/high-debt-hampers-countries-response-to-a-fast-changing-global-economy/?utm_medium=email&utm_source=govdelivery
https://www.economiesuisse.ch/de/artikel/globale-umverteilung-der-firmensteuern-mit-fragezeichen
https://www.suerf.org/docx/f_ec43638b66e16a5bbede9b710b12b0c7_32333_suerf.pdf