{"created": {"type": "/type/datetime", "value": "2009-12-11T02:56:24.030098"}, "subject_places": ["Canada"], "subjects": ["Air", "Environmental aspects", "Environmental aspects of Lead", "Lead", "Pollution"], "latest_revision": 3, "key": "/works/OL10409288W", "title": "National inventory of sources and emissions of lead (1978)", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL4321069A"}}], "type": {"key": "/type/work"}, "last_modified": {"type": "/type/datetime", "value": "2010-12-06T07:38:48.249469"}, "revision": 3}