https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/650455/customs_bill_white_paper_print.pdf
http://www.irishnews.com/news/republicofirelandnews/2017/07/03/news/british-withdrawal-from-fishing-arrangement-unwelcome-and-unhelpful-says-irish-government-1073320/
http://www.voxeurop.eu/en/2017/eu-uk-relations-5120821