{"created": {"type": "/type/datetime", "value": "2009-12-10T18:58:18.829450"}, "subjects": ["Iron", "Specifications", "Steel"], "latest_revision": 3, "key": "/works/OL6328123W", "title": "Worldwide guide to equivalent irons and steels", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL1654373A"}}], "type": {"key": "/type/work"}, "last_modified": {"type": "/type/datetime", "value": "2019-04-22T07:46:37.627841"}, "covers": [8548800], "revision": 3}