{"last_modified": {"type": "/type/datetime", "value": "2010-12-04T04:46:12.848588"}, "title": "The handbook of chemical substitutes", "created": {"type": "/type/datetime", "value": "2009-12-10T05:00:31.380877"}, "subjects": ["Chemicals", "Handbooks, manuals", "Substitute products"], "latest_revision": 2, "key": "/works/OL3977920W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL728643A"}}], "type": {"key": "/type/work"}, "revision": 2}