https://www.ost-ausschuss.de/de/dreimal-zentralasien
https://www.cer.eu/sites/default/files/insight_JS_JP_17.1.23.pdf
https://www.brookings.edu/blog/brookings-now/2017/08/17/nafta-renegotiation-separating-fact-from-fiction/?utm_campaign=Brookings%20Brief&utm_source=hs_email&utm_medium=email&utm_content=55437725
http://www.pism.pl/upload/files/PISM%20Strategic%20File%20no%201%20(89).pdf