@Misc{BVPH2003001306, title = "El eco de Soria : semanario pol\'{\i}tico, liberal-democr\'{a}tico y de intereses generales [Recurso electr\'{o}nico]", publisher = "[S.l. : s.n.", editor = "s.n.", URL = "https://prensahistorica.mcu.es/es/consulta/registro.do?id=1306", year = "1902", }