{"last_modified": {"type": "/type/datetime", "value": "2010-12-04T19:56:55.589236"}, "title": "DC/AC circuit essentials", "created": {"type": "/type/datetime", "value": "2009-12-10T04:51:54.286368"}, "subjects": ["Electric circuits", "Electronic circuits"], "latest_revision": 2, "key": "/works/OL3918615W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL713564A"}}], "type": {"key": "/type/work"}, "revision": 2}