Delgado, James (February 2003). "Relics of the Kamikaze". Archaeology. 56 (1). Archaeological Institute of America. Archived from the original on 29 December 2013.
Bastable, Marshall J. (1992). "From Breechloaders to Monster Guns: Sir William Armstrong and the Invention of Modern Artillery, 1854–1880". Technology and Culture. 33 (2): 213–247. doi:10.2307/3105857. JSTOR3105857. S2CID112105821.
Bastable, Marshall J. (1992). "From Breechloaders to Monster Guns: Sir William Armstrong and the Invention of Modern Artillery, 1854–1880". Technology and Culture. 33 (2): 213–247. doi:10.2307/3105857. JSTOR3105857. S2CID112105821.
Bastable, Marshall J. (1992). "From Breechloaders to Monster Guns: Sir William Armstrong and the Invention of Modern Artillery, 1854–1880". Technology and Culture. 33 (2): 213–247. doi:10.2307/3105857. JSTOR3105857. S2CID112105821.
web.archive.org
Delgado, James (February 2003). "Relics of the Kamikaze". Archaeology. 56 (1). Archaeological Institute of America. Archived from the original on 29 December 2013.
Franzkowiak, Andreas; Wenzel, Chris (2018). "Keramikgranaten aus Ingolstadt - Ein außergewöhnlicher Fund". Waffen- und Kostümkunde - Zeitschrift für Waffen- und Kleidungsgeschichte (in German). 60 (1): 65–80. ISSN0042-9945.
Hogg, Ian; Batchelor, John H. (1972). Artillery. New York: Scribner. ISBN0684130920. OCLC571972.