三式十二糎高射砲
三式12cm高射砲
大砲と装甲の研究
US Naval Technical Mission to Japan - Japanese Field and Amphibious Equipment Kyushu Defense Systems - Intelligence Targets Japan (DNI) of Sept. 1945, Fascicle O-1, Target O-56(N)- February 1946 http://www.fischer-tropsch.org/primary_documents/gvt_reports/USNAVY/USNTMJ%20Reports/USNTMJ-200F-0739-0816%20Report%20O-56%20N.pdf