{"title": "Relational database system implementations", "subjects": ["Relational databases", "Database management"], "key": "/works/OL4444161W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL884517A"}}], "type": {"key": "/type/work"}, "covers": [11916359], "latest_revision": 3, "revision": 3, "created": {"type": "/type/datetime", "value": "2009-12-10T06:23:32.758958"}, "last_modified": {"type": "/type/datetime", "value": "2021-09-06T14:20:02.991635"}}