http://ftp.zew.de/pub/zew-docs/dp/dp20002.pdf
https://blogs.lse.ac.uk/europpblog/2024/07/08/what-the-rise-of-chega-means-for-portuguese-democracy/
https://www.opendemocracy.net/en/transformation/are-evidence-based-decisions-impossible-in-politics/?utm_source=Daily+Newsletter&utm_campaign=18eef5a652-DAILY_NEWSLETTER_MAILCHIMP&utm_medium=email&utm_term=0_717bc5d86d-18eef5a652-407405485
http://www.migrationobservatory.ox.ac.uk/wp-content/uploads/2017/05/Commentary-net-and-election17.pdf