@Misc{DEC19930040217, title = "Plano de Orihuela seg\'{u}n se fortifico en 1809", author = "Villar, Pablo del", publisher = "Orihuela : [s.n.]", editor = "[s.n.]", URL = "https://bvpb.mcu.es/es/consulta/registro.do?id=407506", year = "1809", }