https://www.ceps.eu/wp-content/uploads/2013/02/1304.pdf
https://www.politico.eu/wp-content/uploads/2020/05/LetterVDL12052020EN.pdf
https://read.oecd-ilibrary.org/view/?ref=130_130609-v8jn83j1j3&title=Trade-facilitation-and-the-covid-19-pandemic
https://www.wto.org/english/news_e/pres22_e/pr909_e.htm#:~:text=The%20new%20WTO%20forecast%20estimates,than%20what%20was%20previously%20projected