@Misc{BVMC:222141, author = {Gómez Saafigueroa, Hilario}, title = {Constantinopla, 1453 : sitiadores y sitiados}, publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 2003}, year = {2003}, url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmcr49k1} }