
http://www.ilo.org/wcmsp5/groups/public/—dgreports/—dcomm/—publ/documents/publication/wcms_490959.pdf

https://theconversation.com/por-que-la-victoria-de-maduro-en-venezuela-no-convence-a-casi-nadie-235805

https://www.realinstitutoelcano.org/en/blog/the-long-and-winding-path-to-spains-modernisation/