https://www.v-dem.net/files/25/DR%202021.pdf
https://www.ips-journal.eu/topics/democracy-and-society/slovenias-orbanisation-5123/?utm_campaign=en_886_20210420&utm_medium=email&utm_source=newsletter
https://www.politico.eu/article/marine-le-pen-turned-respectable-france-presidential-election/
http://www.elperiodico.com/es/politica/20171226/que-es-tabarnia-propuesta-secesion-barcelona-tarragona-resto-cataluna-6517873