http://www.epc.eu/documents/uploads/pub_7865_realitybites.pdf
https://publications.parliament.uk/pa/cm201719/cmselect/cmexeu/935/935.pdf
https://publications.parliament.uk/pa/ld201719/ldselect/ldeucom/9/9.pdf
https://www.bloomberg.com/news/features/2017-06-02/u-k-election-brexit-tests-loyalties-in-labour-stronghold?cmpid=BBBXT060217_BIZ&utm_medium=email&utm_source=newsletter&utm_term=170602&utm_campaign=brexit