https://www.brookings.edu/articles/ten-thousand-people-could-decide-the-presidential-election/
https://www.socialeurope.eu/spo-how-not-to-run-a-leadership-contest
https://lawliberty.org/venezuelas-long-struggle-with-corruption/
http://www.inegalites.fr/spip.php?page=analyse&id_article=2289&id_rubrique=64&id_mot=30&id_groupe=9