https://ecipe.org/blog/trade-relationship-status-open/?mc_cid=88a1251206&mc_eid=286ad5ef5f
https://publications.parliament.uk/pa/cm201719/cmselect/cmintrade/520/520.pdf
https://www.wto.org/english/tratop_e/dispu_e/487abr_e.pdf
http://trade.ec.europa.eu/doclib/docs/2018/october/tradoc_157468.pdf