https://www.bloomberg.com/news/articles/2019-06-14/the-eu-had-to-plan-for-worst-when-greece-almost-ran-out-of-money?cmpid=BBBXT061719_BIZ&utm_medium=email&utm_source=newsletter&utm_term=190617&utm_campaign=brexit
https://www.google.com/url?esrc=s&q=&rct=j&sa=U&url=https://www.imf.org/-/media/Files/Publications/WP/2022/English/wpiea2022187-print-pdf.ashx&ved=2ahUKEwiDqLXjvqP9AhXwiP0HHSdXC0UQFnoECAQQAg&usg=AOvVaw3YLIKX-UVfKoiGtiG_7NjZ
https://www.icij.org/investigations/paradise-papers/fairer-transparent-tax-system-will-lost-vested-interests-without-public-pressure-warns-eu-tax-commissioner/