https://curia.europa.eu/jcms/upload/docs/application/pdf/2018-12/cp180187en.pdf
http://www.whateuropethinks.eu/Gallery
https://www.newstatesman.com/ideas/2021/02/what-does-it-mean-be-pro-european-today?mc_cid=4118481f79&mc_eid=286ad5ef5f
https://www.ips-journal.eu/index.php?id=340&L=0&tx_news_pi1%5Bnews%5D=4556&tx_news_pi1%5Bcontroller%5D=News&tx_news_pi1%5Baction%5D=detail&utm_source=newsletter&utm_medium=email&utm_campaign=en_808_20200804&cHash=1b8009a520c4886c5fb98c49979ef2c5