{"tema_id":"1013","string":"Ecosistemas","created":"2008-03-10 13:34:28","code":null,"notes":[{"@type":"Nota hist\u00f3rica","@lang":"es","@value":"Se puede usar con un subencabezamiento geogr\u00e1fico "},{"@type":"Nota bibliogr\u00e1fica","@lang":"es","@value":"CDU: 502.211 "}]}