{"title": "The world of extraction metallurgy", "created": {"type": "/type/datetime", "value": "2009-12-11T03:25:40.767980"}, "last_modified": {"type": "/type/datetime", "value": "2009-12-11T03:25:40.767980"}, "latest_revision": 1, "key": "/works/OL10683049W", "authors": [{"type": "/type/author_role", "author": {"key": "/authors/OL4458837A"}}], "type": {"key": "/type/work"}, "revision": 1}