
https://www.wilsoncenter.org/article/mapping-undersea-infrastructure-attacks-baltic-sea

https://ad-aspi.s3.ap-southeast-2.amazonaws.com/2023-03/ASPIs%20Critical%20Technology%20Tracker_0.pdf?VersionId=ndm5v4DRMfpLvu.x69Bi_VUdMVLp07jw

https://publications.parliament.uk/pa/cm201719/cmselect/cmbeis/379/379.pdf