1 2 Steensen, Robert Steen. Vore Panserskibe [Our Armoured Vessels]. Marinehistorisk Selskab, Copenhagen, Denmark: 1968. pp. 178–195. Steensen là một cựu chỉ huy thuộc Hải quân Hoàng gia Đan Mạch. Phiên bản dịch tiếng Anh bởi Søren Nørby có thể được tìm thấy ở http://milhist.dk/vabnet/the-armoured-ram-staerkodder/
↑ Both the Stærkodder and Stonewall commissionings can be considered valid through international maritime law as illustrated by Captain Thomas J. Page; "customarily, a ship is held to be commissioned when a commissioned officer appointed to her has gone on board of her and hoisted the colors appropriated to the military marines." Page, Thomas J. "The Career of the Confederate Cruiser Stonewall". Southern Historical Society Papers, Volume VII, Number 6. Richmond, Virginia: 1879. Pages 263–280.
1 2 3 Letter from Susumu Nishiura, Staff-in-Chief, War History Room, Ministry of Defense, Japan, to Faith Kravitz, Eleutherian Mills, Hagley Museum, Delaware, USA dated Sept. 25, 1965, available at https://archive.org/details/KravitzNishiuraLtrJapanese/
↑ Free, Early Japanese Railways 1853–1914: Engineering Triumphs That Transformed Meiji-era Japan, Tuttle Publishing, 2008 (
