https://www.wilsoncenter.org/article/mapping-undersea-infrastructure-attacks-baltic-sea
https://www.ips-journal.eu/topics/democracy-and-society/from-memory-to-policy-7290/
https://www.rand.org/pubs/research_reports/RR1786.html
https://www.ips-journal.eu/topics/foreign-and-security-policy/an-end-to-germanys-end-of-history-6786/