https://frictions.co/english/linsoutenable-legerete-du-labeur/working-ourselves-clean/
https://www.hamiltonproject.org/assets/files/UnionsEA_Web_8.19.pdf
https://www.oecd.org/tax/beps/public-consultation-document-secretariat-proposal-unified-approach-pillar-one.pdf
https://www.llri.lt/wp-content/uploads/2018/06/Labour-Migration_3.pdf