{"created": {"type": "/type/datetime", "value": "2009-12-10T22:31:11.023985"}, "subjects": ["Cell phone systems", "Personal communication service systems", "Mobile communication systems", "Instant messaging", "Multimedia systems"], "latest_revision": 3, "key": "/works/OL8204041W", "title": "Mobile Messaging Technologies and Services", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL2729679A"}}], "type": {"key": "/type/work"}, "last_modified": {"type": "/type/datetime", "value": "2014-07-29T20:40:00.288464"}, "covers": [299420], "revision": 3}