{"last_modified": {"type": "/type/datetime", "value": "2010-12-03T13:16:51.505373"}, "title": "Principles of ionization smoke detection", "created": {"type": "/type/datetime", "value": "2009-12-10T05:21:00.593329"}, "subjects": ["Fire detectors", "Mine fires", "Prevention and control"], "latest_revision": 2, "key": "/works/OL4098229W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL767767A"}}], "type": {"key": "/type/work"}, "revision": 2}