@Misc{BVPH2003001539, title = "Cr\'{o}nica extreme\~{n}a de previsi\'{o}n social : revista de informaciones y divulgaci\'{o}n [Recurso electr\'{o}nico]", publisher = "C\'{a}ceres : Caja Extreme\~{n}a", editor = "Caja Extreme\~{n}a", URL = "https://prensahistorica.mcu.es/es/consulta/registro.do?id=1539", year = "1934", }