
http://www.failteireland.ie/FailteIreland/media/WebsiteStructure/Documents/Brexit/Exchange-rate-impacts-Update-19th-June-2018.pdf?ext=.pdf

https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/638135/6.3703_DEXEU_Northern_Ireland_and_Ireland_INTERACTIVE.pdf

https://www.publications.parliament.uk/pa/cm201617/cmselect/cmbeis/909/909.pdf