{"last_modified": {"type": "/type/datetime", "value": "2010-12-03T14:32:40.936577"}, "title": "The principles, history & use, of air-balloons", "created": {"type": "/type/datetime", "value": "2009-12-10T21:15:01.069186"}, "subjects": ["Balloon ascensions", "Balloons", "Balloons in art"], "latest_revision": 3, "key": "/works/OL7485828W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL2272612A"}}], "type": {"key": "/type/work"}, "revision": 3}