https://www.ilo.org/wcmsp5/groups/public/—dgreports/—cabinet/documents/publication/wcms_662442.pdf
https://www.ccomptes.fr/system/files/2019-07/20190716-rapport-regimes-speciaux-retraite.pdf
https://www.nuffieldtrust.org.uk/resource/getting-a-brexit-deal-that-works-for-the-nhs
https://www.boe.es/boe/dias/2021/12/30/pdfs/BOE-A-2021-21788.pdf