
https://www.politico.eu/article/imf-ukraine-russia-loan-eu-financial-support-war-economy/

https://www.taxpolicycenter.org/sites/default/files/publication/163549/report-taxing-business-incomes-evidence-from-the-survey-of-consumer-finances.pdf

http://ec.europa.eu/budget/mff/hlgor/library/reports-communication/hlgor-report_20170104.pdf