https://publications.parliament.uk/pa/cm201719/cmselect/cmworpen/848/848.pdf
https://www.socialeurope.eu/2017/07/road-soft-brexit/
https://ukandeu.ac.uk/wp-content/uploads/2020/05/UKICE-Post-Brexit-Gov-NI-Report.pdf
https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/652285/Joint_Ministerial_Committee_communique.pdf