http://www.ips-journal.eu/storage/topics/european-union/article/show/pillar-of-society-2467/
https://theconversation.com/el-espanol-una-lengua-americana-228150
https://lawliberty.org/the-incapable-states-of-america/?utm_source=newsletter&utm_medium=email&utm_campaign=17%2F05%2F22+(Copy)
https://www.sciencespo.fr/cevipof/sites/sciencespo.fr.cevipof/files/CEPR-DP13103.pdf