https://ukandeu.ac.uk/wp-content/uploads/2019/12/Brexit-the-manifestos-uncovered.pdf
http://blogs.lse.ac.uk/brexit/2018/01/12/the-usual-underdogs-of-lobbying-were-the-surprising-winners-of-the-brexit-vote-debate/
https://www.nmc.org.uk/globalassets/sitedocuments/other-publications/nmc-register-2013-2017.pdf
https://www.esri.ie/system/files/publications/RB202017_2.pdf