https://www.economiesuisse.ch/de/artikel/schuldentricks-und-standortsorgen-deutschland-im-kreuzfeuer
https://cthi.taxjustice.net/cthi2021/country-list.pdf
https://oxfamilibrary.openrepository.com/bitstream/10546/621149/1/bp-the-inequality-virus-250121-en.pdf
https://www.ips-journal.eu/index.php?id=343&L=0&tx_news_pi1%5Bnews%5D=3433&tx_news_pi1%5Bcontroller%5D=News&tx_news_pi1%5Baction%5D=detail&cHash=d423ae64c4b25e2b5dc104f032109b1e