http://www.ilo.org/wcmsp5/groups/public/—dgreports/—dcomm/—publ/documents/publication/wcms_490959.pdf
https://www.nuffieldtrust.org.uk/news-item/privatisation-by-the-front-door-what-does-a-new-public-private-gp-model-mean
https://theconversation.com/el-sueno-republicano-en-el-cine-espanol-218674