https://library.fes.de/pdf-files/international/20258.pdf
https://unctad.org/news/post-brexit-uk-exports-could-fall-32-billion-due-non-tariff-measures-and-tariffs
https://www.econstor.eu/bitstream/10419/266146/1/1820832732.pdf
https://www.wto.org/english/tratop_e/dispu_e/487abr_e.pdf