https://rusi.org/commentary/japan-view-global-britain-and-uk-integrated-review
https://dserver.bundestag.de/btd/20/057/2005700.pdf
https://www.koerber-stiftung.de/fileadmin/user_upload/koerber-stiftung/redaktion/the-berlin-pulse/pdf/2018/The-Berlin-Pulse-2018.pdf
https://www.ips-journal.eu/topics/democracy-and-society/the-berlin-blob-7462/