http://cep.lse.ac.uk/pubs/download/brexit11.pdf
https://www.politico.eu/article/olaf-scholz-message-europe-germany-first/?utm_source=POLITICO.EU&utm_campaign=e4fc813b15-EMAIL_CAMPAIGN_2022_10_10_04_23&utm_medium=email&utm_term=0_10959edeb5-e4fc813b15-190380769
http://www.europarl.europa.eu/RegData/etudes/IDAN/2017/599352/EPRS_IDA%282017%29599352_EN.pdf
https://www.bruegel.org/sites/default/files/2023-05/PB%2010%202023.pdf