
https://www.swp-berlin.org/en/publication/labiles-frankreich-auswirkungen-der-vorgezogenen-parlamentswahlen

http://www.europarl.europa.eu/pdf/eurobarometre/2018/oneyearbefore2019/eb89_one_year_before_2019_eurobarometer_en_results_annex.pdf

https://theconversation.com/germany-lowers-voting-age-to-16-for-the-european-elections-but-is-it-playing-into-the-far-rights-hands-229401