http://www.cesifo-group.de/ifoHome/publications/working-papers/CESifoWP/CESifoWPdetails?wp_num=6438&CESifoWP.search=+
http://www.cesifo-group.de/ifoHome/publications/working-papers/CESifoWP/CESifoWPdetails?wp_num=6448&CESifoWP.search=+
https://www.iod.com/Portals/0/PDFs/Campaigns%20and%20Reports/Europe%20and%20trade/Business-of-Brexit.pdf?ver=2017-05-22-090428-150
http://www.res.org.uk/view/art4Apr17Features.html
http://www.rug.nl/research/portal/files/41711829/cesifo1_wp6448.pdf
http://voxeu.org/system/files/epublication/Brexit_Beckons_VoxEU.pdf
http://www.conservativehome.com/parliament/2016/04/theresa-mays-speech-on-brexit-full-text.html
https://www.gov.uk/government/speeches/eu-speech-at-bloomberg
https://www.publications.parliament.uk/pa/ld201617/ldselect/ldeucom/116/116.pdf
https://www.publications.parliament.uk/pa/cm201617/cmselect/cmintrade/817/817.pdf