http://www.ips-journal.eu/topics/european-union/article/show/say-it-with-feeling-2184/
https://www.aspistrategist.org.au/germanys-weakness-is-bad-for-europe/
http://www.bankofengland.co.uk/publications/Documents/speeches/2017/speech976.pdf
http://cer.eu/sites/default/files/report_relaunching_eu_nov17.pdf