https://archive.org/details/TM9-1985-3
https://archive.org/details/TM919852GermanExplosiveOrdnance1953
https://www.warhistoryonline.com/war-articles/11-secret-weapons-developed-by-japan-during-wwii.html
https://books.google.com/books?id=ARojAAAAMAAJ&printsec=frontcover#v=onepage&q&f=false
https://www.history.com/news/the-nazis-developed-sarin-gas-but-hitler-was-afraid-to-use-it
https://www.history.navy.mil/content/history/nhhc/research/library/online-reading-room/title-list-alphabetically/j/japanese-naval-merchant-shipping-losses-wwii.html
https://web.archive.org/web/20080409052122/http://www.navy.mil/navydata/cno/n87/history/wwii-campaigns.html
http://www.shipwreckregistry.com/index6.htm
https://www.nytimes.com/2017/04/12/science/sean-spicer-hitler-sarin-chemical-weapons-world-war-ii.html
https://archive.org/details/MedicalAspectsOfChemicalAndBiologicalWarfare_201804
https://emergency.cdc.gov/agent/sarin/basics/facts.asp
https://archive.org/details/MaterialsOnTheTrialOfFormerServicemen
https://archive.org/details/plagueuponhumani00bare/page/163/mode/2up
https://archive.org/details/kamikazejapanssu0000lamo_f8w4
https://archive.org/details/kamikazediariesr00ohnu