@Misc{BVPH2004001312, title = "El porvenir segoviano : peri\'{o}dico literario y de intereses materiales [Recurso electr\'{o}nico]", publisher = "[S.l. : s.n.]", editor = "s.n.]", URL = "https://prensahistorica.mcu.es/es/consulta/registro.do?id=2982", year = "1863", }