{"created": {"type": "/type/datetime", "value": "2009-12-10T22:10:28.420174"}, "subjects": ["Double salts", "Lead compounds"], "latest_revision": 5, "key": "/works/OL7896877W", "title": "The double halides of lead and the alkali metals ..", "authors": [{"type": "/type/author_role", "author": {"key": "/authors/OL2597745A"}}], "type": {"key": "/type/work"}, "last_modified": {"type": "/type/datetime", "value": "2020-09-12T04:40:20.850281"}, "covers": [7043195], "revision": 5}