“Aleksander Čeferin re-elected UEFA President until 2023”. 欧州サッカー連盟 (2019年2月7日). 2019年10月11日閲覧。 "The UEFA Executive Committee also met in Rome on 6 February and decided to increase the number of participants to the final tournament of the UEFA Under-21 Championship 2019-21 – which will take place in Hungary and Slovenia in June 2021 - from 12 to 16 participants."
