http://ecdpm.org/wp-content/uploads/ETTG-Brief-Keijzer-Medinilla-November-2017.pdf
https://www.brookings.edu/articles/the-middle-east-conflict-is-threatening-to-cripple-a-fragile-global-economy/
http://www.cesifo-group.de/ifoHome/publications/working-papers/CESifoWP/CESifoWPdetails?wp_num=6456&CESifoWP.search=+
https://www.ecfr.eu/page/-/popular_demand_for_strong_european_foreign_policy_what_people_want.pdf