{"created": {"type": "/type/datetime", "value": "2009-12-10T20:01:22.122416"}, "subjects": ["Economics", "Mathematical models"], "latest_revision": 3, "key": "/works/OL6921063W", "title": "Mathematical models in microeconomics", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL1916849A"}}], "type": {"key": "/type/work"}, "last_modified": {"type": "/type/datetime", "value": "2020-10-11T22:27:30.056434"}, "covers": [9935570], "revision": 3}