http://www.cer.eu/sites/default/files/pb_ireland_brexit_6.7.17.pdf
http://www.euronews.com/2017/06/23/who-s-afraid-of-brexit?utm_source=newsletter&utm_medium=en&utm_content=who-s-afraid-of-brexit&_ope=eyJndWlkIjoiZjU3Y2JhYmUwMGUxZDFiNTUxOTU1ZDljNzExNTI1MmEifQ==
https://docs.iza.org/dp16728.pdf
https://www.publications.parliament.uk/pa/cm201617/cmselect/cmwomeq/799/799.pdf