{"title": "ESTUDIO DEL SELLO CONMEMORATIVO DEL CUARTO CENTENARIO DEL DESCUBRIMIENTO DE PUERTO RICO 1493-1893", "created": {"type": "/type/datetime", "value": "2012-10-02T15:09:46.961650"}, "last_modified": {"type": "/type/datetime", "value": "2012-10-02T15:09:46.961650"}, "latest_revision": 1, "key": "/works/OL16795173W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL7166494A"}}], "type": {"key": "/type/work"}, "revision": 1}