https://theconversation.com/los-primeros-usos-de-la-palabra-filosofia-210236
https://eutopialaw.com/2013/03/07/sovereignty-the-historical-perspective-or-les-absents-ont-toujours-tort/#more-1809
https://www.publications.parliament.uk/pa/cm201617/cmselect/cmscotaf/82/82.pdf