http://dip21.bundestag.de/dip21/btd/19/007/1900700.pdf
https://sgp.fas.org/crs/natsec/RL33110.pdf
https://www.aspistrategist.org.au/sharks-for-filling-the-moat-what-andurils-autonomous-submarines-can-do-for-australia/
https://vuosikirja.supo.fi/documents/62399122/66519032/SUPO+Yearbook+2022.pdf/109369e6-13c3-ee60-474e-eff9c4d44217/SUPO+Yearbook+2022.pdf?t=1679642311270