https://www.socialeurope.eu/how-to-reform-the-european-fiscal-rules
https://pure.royalholloway.ac.uk/portal/files/26649214/arkolakis_doxiadis_galenianos_greek_trade_adjustment_september_2014.pdf
http://www.resolutionfoundation.org/app/uploads/2017/01/Audit-2017.pdf
https://www.ipg-journal.de/interviews/artikel/das-vertrauen-vollstaendig-verloren-2934/