Valavanis, K. P.; Vachtsevanos, G. J.; Antsaklis, P. J. (July 2007). "Technology and autonomous mechanisms in the mediterranean: From ancient Greece to Byzantium". 2007 European Control Conference (ECC). pp. 263–270. doi:10.23919/ECC.2007.7068808. ISBN978-3-9524173-8-6. S2CID32345309.
Bachrach, David Stewart (2008-08-13). "Gunpowder, Explosives, and the State: A Technological History (review)". Technology and Culture. 49 (3): 785–786. doi:10.1353/tech.0.0051. ISSN1097-3729. S2CID111173101.
Valavanis, K. P.; Vachtsevanos, G. J.; Antsaklis, P. J. (July 2007). "Technology and autonomous mechanisms in the mediterranean: From ancient Greece to Byzantium". 2007 European Control Conference (ECC). pp. 263–270. doi:10.23919/ECC.2007.7068808. ISBN978-3-9524173-8-6. S2CID32345309.
Bachrach, David Stewart (2008-08-13). "Gunpowder, Explosives, and the State: A Technological History (review)". Technology and Culture. 49 (3): 785–786. doi:10.1353/tech.0.0051. ISSN1097-3729. S2CID111173101.
Bachrach, David Stewart (2008-08-13). "Gunpowder, Explosives, and the State: A Technological History (review)". Technology and Culture. 49 (3): 785–786. doi:10.1353/tech.0.0051. ISSN1097-3729. S2CID111173101.