
https://21stcenturywire.com/wp-content/uploads/2022/03/SenateReporten.pdf

https://papers.ssrn.com/sol3/Delivery.cfm/SSRN_ID3934683_code1082902.pdf?abstractid=3479439&mirid=1

https://www.eurofound.europa.eu/sites/default/files/ef_publication/field_ef_document/ef19041en.pdf