{"last_modified": {"type": "/type/datetime", "value": "2010-12-06T05:37:53.105792"}, "title": "Valve gear design", "created": {"type": "/type/datetime", "value": "2009-12-10T21:40:30.648149"}, "subjects": ["Internal combustion engines", "Valve gears"], "latest_revision": 2, "key": "/works/OL7699220W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL2380133A"}}], "type": {"key": "/type/work"}, "revision": 2}