https://www.martenscentre.eu/wp-content/uploads/2022/04/Spring-2022-European-View.pdf
http://www.irsd.be/website/images/livres/rmb/19/ed_19_art_16.pdf
https://dam.gcsp.ch/files/doc/ssa-2022-issue22?_gl=1*1mzrz83*_ga*NDgwMzA0ODA2LjE2NDQzNDk0NTk.*_ga_Z66DSTVXTJ*MTY0NDM0OTQ1OC4xLjAuMTY0NDM0OTQ1OC4w
https://geopoliticalfutures.com//pdfs/the-russian-mystery-geopoliticalfutures-com.pdf