
https://theconversation.com/tratados-y-territorios-como-evaluar-hechos-historicos-con-normas-de-su-epoca-223952

https://www.greeneuropeanjournal.eu/du-socle-europeen-de-droits-sociaux-a-leuro-dividende-le-choix-dune-europe-sociale-ambitieuse/

http://www.ips-journal.eu/storage/topics/european-union/article/show/pillar-of-society-2467/