https://www.wilsoncenter.org/sites/default/files/media/uploads/documents/MexicoElectionBookletFinalWebProof.pdf
http://sro.sussex.ac.uk/id/eprint/110932/1/BP-70.pdf
https://www.ips-journal.eu/topics/foreign-and-security-policy/yes-to-arms-aid-no-to-western-integration-6607/