
https://www.santandercb.co.uk/sites/default/files/documents/trade_barometer_spring_2022.pdf

https://www.sciencedirect.com/science/article/pii/S2542435121000830/pdfft?md5=cdf440c00dde4a8e080cc3901da4c60b&pid=1-s2.0-S2542435121000830-main.pdf

http://www.iata.org/whatwedo/Documents/economics/impact_of_brexit.pdf