https://www.dsgv.de/newsroom/presse/190912_PM_EZB_30.html
https://www.cer.eu/sites/default/files/pbrief_recovery_fund_11.11.21.pdf
http://www.oecd-ilibrary.org/docserver/download/5jlv2jhfnt48-en.pdf?expires=1494939516&id=id&accname=guest&checksum=08592067325A17BFB82AC6F6E15110B2
https://www.hesa.ac.uk/data-and-analysis/publications/finances-2015-16/introduction