Roland 1992, p. 657; Pryor & Jeffreys 2006, p. 608 Roland, Alex (1992), "Secrecy, Technology, and War: Greek Fire and the Defense of Byzantium", Technology and Culture, 33 (4): 655–679, doi:10.2307/3106585, JSTOR3106585, S2CID113017993 Pryor, John H.; Jeffreys, Elizabeth M. (2006), The Age of the ΔΡΟΜΩΝ: The Byzantine Navy ca. 500–1204, Brill Academic Publishers, ISBN978-9004151970
Roland 1992, p. 657; Pryor & Jeffreys 2006, p. 608 Roland, Alex (1992), "Secrecy, Technology, and War: Greek Fire and the Defense of Byzantium", Technology and Culture, 33 (4): 655–679, doi:10.2307/3106585, JSTOR3106585, S2CID113017993 Pryor, John H.; Jeffreys, Elizabeth M. (2006), The Age of the ΔΡΟΜΩΝ: The Byzantine Navy ca. 500–1204, Brill Academic Publishers, ISBN978-9004151970
Roland 1992, p. 657; Pryor & Jeffreys 2006, p. 608 Roland, Alex (1992), "Secrecy, Technology, and War: Greek Fire and the Defense of Byzantium", Technology and Culture, 33 (4): 655–679, doi:10.2307/3106585, JSTOR3106585, S2CID113017993 Pryor, John H.; Jeffreys, Elizabeth M. (2006), The Age of the ΔΡΟΜΩΝ: The Byzantine Navy ca. 500–1204, Brill Academic Publishers, ISBN978-9004151970