
http://blogs.lse.ac.uk/brexit/2018/07/09/british-influence-in-brussels-had-been-far-greater-than-recognised/

https://ec.europa.eu/research/evaluations/pdf/archive/other_reports_studies_and_documents/hlg_2017_report.pdf

https://www.politico.com/news/magazine/2023/02/21/joe-bidens-ukrainian-zelenskyy-00083683