https://www.wto.org/english/tratop_e/dispu_e/567r_e.pdf16 Jun, 2020
http://library.fes.de/pdf-files/iez/13375.pdf
https://www.ftc.gov/system/files/documents/reports/nixing-fix-ftc-report-congress-repair-restrictions/nixing_the_fix_report_final_5521_630pm-508_002.pdf
https://gcaptain.com/china-europe-rail-lines-supply-china/?subscriber=true&goal=0_f50174ef03-401209d0eb-170450703&mc_cid=401209d0eb&mc_eid=4069c37bba