https://www.clingendael.org/sites/default/files/2019-08/Report_US-China_stand-off.pdf
https://docs.wto.org/dol2fe/Pages/SS/directdoc.aspx?filename=q:/INF/TESSD/R4.pdf&Open=True
https://www.eia.gov/energyexplained/us-energy-facts/imports-and-exports.php
https://www.iai.it/sites/default/files/iai1910.pdf