https://www.diw.de/documents/publikationen/73/diw_01.c.578096.de/18-7-3.pdf
https://www.socialeurope.eu/2017/07/european-welfare-states-perform/
http://uk.reuters.com/article/uk-ecb-policy-draghi-idUKKBN19H1Z7?utm_source=POLITICO.EU&utm_campaign=b1a85f2c23-EMAIL_CAMPAIGN_2017_06_27&utm_medium=email&utm_term=0_10959edeb5-b1a85f2c23-189647205
https://www.politico.eu/article/european-union-scandal-parliament-qatar/?utm_source=POLITICO.EU&utm_campaign=c1a8831ae1-EMAIL_CAMPAIGN_2022_12_16_05_49&utm_medium=email&utm_term=0_10959edeb5-c1a8831ae1-%5BLIST_EMAIL_ID%5D