http://www.cer.org.uk/sites/default/files/insight_AG_CO_18.5.17.pdf
https://www.eu2017.ee/news/insights/speech
https://trybunal.gov.pl/en/hearings/judgments/art/11662-ocena-zgodnosci-z-konstytucja-rp-wybranych-przepisow-traktatu-o-unii-europejskiej
https://www.socialeurope.eu/four-lessons-for-europe-from-italys-experience-with-populism