https://www.boeckler.de/pdf/p_imk_report_125e_2017.pdf
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwij8PLy0aH1AhVEhP0HHf7rAYwQFnoECAYQAQ&url=https%3A%2F%2Fassets.gov.ie%2F203426%2F468690ef-2b01-4d7d-a6d3-c0cbabcab3cb.pdf&usg=AOvVaw2-vnoHbS5dgbnNXNla3sLK
https://www.icij.org/investigations/paradise-papers/africa-presses-for-un-tax-plan-despite-eu-resistance/
https://www.eurofound.europa.eu/sites/default/files/ef_publication/field_ef_document/ef1747en.pdf