https://www.project-syndicate.org/commentary/china-hong-kong-return-by-chris-patten-2017-06
https://www.ips-journal.eu/index.php?id=342&L=0&tx_news_pi1[news]=3386&tx_news_pi1[controller]=News&tx_news_pi1[action]=detail&cHash=3c8db0c62b143002c85905588a2a8fc4
https://visegradinsight.eu/asymmetrical-strategies-orban-eu/