https://www.bti-project.org/en/data/rankings/status-index/
https://ep00.epimg.net/descargables/2018/05/24/bfe9a6898e6b41480fd9d57aff93bc10.pdf
https://www.newstatesman.com/ideas/2021/02/what-does-it-mean-be-pro-european-today?mc_cid=4118481f79&mc_eid=286ad5ef5f
https://wiiw.ac.at/still-in-the-fast-lane-how-can-eu-cee-get-its-groove-back-dlp-6997.pdf