{"created": {"type": "/type/datetime", "value": "2009-12-10T06:25:05.278207"}, "subjects": ["Programmable controllers"], "latest_revision": 3, "key": "/works/OL4453516W", "title": "A systems approach to programmable controllers", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL887168A"}}], "type": {"key": "/type/work"}, "last_modified": {"type": "/type/datetime", "value": "2010-12-04T14:34:43.034891"}, "covers": [1573998], "revision": 3}