
http://voxeu.org/system/files/epublication/Brexit_Beckons_VoxEU.pdf

https://rusi.org/sites/default/files/newsbrief_37.3_elliott.pdf

https://home.kpmg.com/content/dam/kpmg/nl/pdf/2018/sector/overheid/impact-van-non-tarifaire-handelsbelemmeringen-als-gevolg-van-brexit.pdf