
https://static.europeanchamber.com.cn/upload/medianews/attachments/European_Chamber_Trade_War_Survey_Results_and_Analysis_Fall_2019[24].pdf

https://economiesuisse.ch/de/print/pdf/node/49145

https://ukandeu.ac.uk/feeble-codes-inadequate-to-deal-with-ministers-and-officials/?mc_cid=f8fcfba499&mc_eid=815b1928ec