{"covers": [9412015, 9323710], "first_publish_date": "1932", "latest_revision": 4, "key": "/works/OL179962W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL2221821A"}}], "subjects": ["Quantum theory", "Electricity", "Magnetic susceptibility", "Magnetism"], "created": {"type": "/type/datetime", "value": "2009-10-20T19:49:43.899425"}, "title": "The theory of electric and magnetic susceptibilities", "last_modified": {"type": "/type/datetime", "value": "2020-05-11T14:38:37.585567"}, "type": {"key": "/type/work"}, "revision": 4}