
https://ukandeu.ac.uk/explainers/eu-switzerland-negotiations-agreement/?mc_cid=1b270f9c56&mc_eid=815b1928ec

https://publications.parliament.uk/pa/cm201719/cmselect/cmfaff/514/514.pdf

http://www.niesr.ac.uk/sites/default/files/publications/NIESR%20GE%20Briefing%20Paper%20No.%204%20-%20Agriculture%20in%20the%20UK_0.pdf