https://www.gov.uk/government/publications/information-about-the-withdrawal-bill
http://The EU Won’t Help a Weakened Theresa May
https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/638135/6.3703_DEXEU_Northern_Ireland_and_Ireland_INTERACTIVE.pdf
https://www.open-britain.co.uk/new_research_trade_deals_with_five_key_countries_could_take_26_years_to_negotiate