https://www.ips-journal.eu/topics/foreign-and-security-policy/security-in-limbo-7255/
https://www.ips-journal.eu/index.php?id=344&L=0&tx_news_pi1%5Bnews%5D=4022&tx_news_pi1%5Bcontroller%5D=News&tx_news_pi1%5Baction%5D=detail&utm_source=newsletter&utm_medium=email&utm_campaign=en_744_20200124&cHash=0035b694980e01653f0c38b48bd9d986
https://dam.gcsp.ch/files/doc/policy-brief-4-future-of-neutrality?_gl=1*8d0gl7*_ga*MTA4MDQzNTMyMS4xNjc5NzU3MDMz*_ga_Z66DSTVXTJ*MTY3OTc1NzAzMi4xLjAuMTY3OTc1NzAzMi4wLjAuMA..
https://www.reuters.com/world/leaked-us-intel-document-claims-serbia-agreed-arm-ukraine-2023-04-12/