https://www.project-syndicate.org/commentary/china-hong-kong-return-by-chris-patten-2017-06
https://www.ips-journal.eu/index.php?id=340&L=0&tx_news_pi1%5Bnews%5D=3713&tx_news_pi1%5Bcontroller%5D=News&tx_news_pi1%5Baction%5D=detail&cHash=ad69c8ba018780f41c99687150ea1447
https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/969402/The_Integrated_Review_of_Security__Defence__Development_and_Foreign_Policy.pdf
https://www.whitehouse.gov/wp-content/uploads/2019/03/ERP-2019.pdf