http://ecdpm.org/wp-content/uploads/ETTG-Brief-Keijzer-Medinilla-November-2017.pdf
https://www.ips-journal.eu/topics/democracy-and-society/ukraines-tale-of-two-colonisations-6177/?utm_campaign=en_1033_20220909&utm_medium=email&utm_source=newsletter
https://www.merkur.de/politik/xi-jinping-putin-china-russland-energie-wirtschaftsforum-gas-oel-usbekistan-kasachstan-91947154.html
https://www.iiss.org/publications/strategic-dossiers/iran-dossier/iran-19-03-ch-1-tehrans-strategic-intent