https://www.bruegel.org/policy-brief/european-union-gas-survival-plan-2023
https://www.bloomberg.com/view/articles/2017-05-31/eu-tax-competition-is-unfair-and-inefficient?utm_source=yahoo&utm_medium=bd&utm_campaign=headline&cmpId=yhoo.headline&yptr=yahoo
https://www.bruegel.org/sites/default/files/2023-03/PB%2007%202023_2.pdf
https://ies.fsv.cuni.cz/default/file/download/id/33794