{"tema_id":"804","string":"Desviaci\u00f3n magn\u00e9tica","created":"2008-05-13 13:50:14","code":null,"notes":[{"@type":"Nota hist\u00f3rica","@lang":null,"@value":"Admitida en diciembre de 1999. "},{"@type":"Nota bibliogr\u00e1fica","@lang":null,"@value":"CDU 629.5.052 "}]}