https://www.politico.com/news/magazine/2023/12/12/fiona-hill-ukraine-putin-00131285
https://blogs.lse.ac.uk/europpblog/2023/11/07/europe-ukraine-and-the-west/
https://www.documentcloud.org/documents/5955249-Report.html
https://www.auswaertiges-amt.de/blob/2608580/49d50fecc479304c3da2e2079c55e106/china-strategie-en-data.pdf