https://www.cesifo-group.de/DocDL/ifoDD_18-01_03-09_Ochsner.pdf
https://www.nato.int/nato_static_fl2014/assets/pdf/pdf_2018_03/20180315_SG_AnnualReport_en.pdf
https://dam.gcsp.ch/files/doc/policy-brief-4-future-of-neutrality?_gl=1*8d0gl7*_ga*MTA4MDQzNTMyMS4xNjc5NzU3MDMz*_ga_Z66DSTVXTJ*MTY3OTc1NzAzMi4xLjAuMTY3OTc1NzAzMi4wLjAuMA..
https://www.brookings.edu/articles/russia-ukraine-and-organized-crime-and-illicit-economies-in-2024/