https://www.theguardian.com/politics/2017/sep/04/uk-trade-deals-after-brexit-theresa-may-eu
https://ukandeu.ac.uk/explainers/eu-switzerland-negotiations-agreement/?mc_cid=1b270f9c56&mc_eid=815b1928ec
https://institute.global/news/tony-blair-parliaments-duty-brexit
https://apps.eui.eu/EUI_API/EVENTSV2/Attachments/Index?id=22316