https://rusi.org/sites/default/files/newsbrief_37.3_elliott.pdf
https://institute.global/news/globalisation-brexit-and-transatlantic-alliance
https://ukandeu.ac.uk/wp-content/uploads/2021/11/Brexit-and-Services-Trade-Working-Paper.pdf
https://www.cer.eu/sites/default/files/insight_SL_5.11.19_2.pdf