{"lc_classifications": ["QA315 .B53"], "key": "/works/OL1234467W", "created": {"type": "/type/datetime", "value": "2009-12-09T20:48:45.488361"}, "title": "Lectures on the calculus of variations", "id": 36412937, "first_publish_date": "1946", "latest_revision": 2, "last_modified": {"type": "/type/datetime", "value": "2010-01-23T05:15:28.134755"}, "authors": [{"type": "/type/author_role", "author": {"key": "/authors/OL124569A"}}], "dewey_number": ["517.4"], "type": {"key": "/type/work"}, "subjects": ["Calculus of variations"], "revision": 2}