
https://www.publications.parliament.uk/pa/ld201617/ldselect/ldeucom/78/78.pdf

https://publications.parliament.uk/pa/cm201719/cmselect/cmfaff/780/780.pdf

https://theconversation.com/why-the-eus-singapore-ruling-does-not-lead-to-a-smoother-brexit-road-for-britain-78116