http://www.ips-journal.eu/regions/europe/article/show/battle-of-the-bulldogs-2063/
https://www.parliament.uk/documents/commons-committees/culture-media-and-sport/Background%20paper%20-%202016%20Referendum%20Expenses%20Opinion%20-%20Matrix%20Chambers.pdf
http://www.ibec.ie/IBEC/Press/PressPublicationsdoclib3.nsf/vPages/Newsroom~uk%27s-brexit-approach-risks-damaging-uk-irish-relations-17-01-2017/%24file/Brexit+Priorities+Report.pdf
https://www.friendsofeurope.org/sites/default/files/media-files/uk_report_web.pdf