https://wiiw.ac.at/can-multinationals-withstand-growing-trade-barriers-dlp-6732.pdf
https://www.timeshighereducation.com/fr/books/review-shadows-empire-anglosphere-british-politics-michael-kenny-and-nick-pearce-polity-press
http://trade.ec.europa.eu/doclib/docs/2017/june/tradoc_155642.pdf
https://www.wto.org/english/res_e/booksp_e/gvc_dev_report_2019_e.pdf