https://www.socialeurope.eu/2017/05/irelands-brexit-borders-possible-solution/
https://eur-lex.europa.eu/legal-content/EN/TXT/PDF/?uri=CELEX:32019R0452&from=EN
https://curia.europa.eu/jcms/upload/docs/application/pdf/2021-06/cp210091es.pdf
https://www.socialeurope.eu/is-esg-the-solution-to-climate-and-social-ills