http://www.consilium.europa.eu/en/press/press-releases/2017/04/29-euco-brexit-guidelines/
https://publications.parliament.uk/pa/cm201719/cmselect/cmhaff/961/961.pdf
http://www.euronews.com/2017/09/28/posted-workers-facing-harsh-realities?utm_source=newsletter&utm_medium=en&utm_content=posted-workers-facing-harsh-realities&_ope=eyJndWlkIjoiZjU3Y2JhYmUwMGUxZDFiNTUxOTU1ZDljNzExNTI1MmEifQ==
https://cdn.tspace.gov.au/uploads/sites/107/2018/04/Shaping-a-Nation-1.pdf