{"last_modified": {"type": "/type/datetime", "value": "2010-12-06T05:50:36.480093"}, "title": "Electric switches for use in gaseous mines", "created": {"type": "/type/datetime", "value": "2009-12-10T21:42:48.690003"}, "subjects": ["Electric switchgear", "Electricity in mining"], "latest_revision": 2, "key": "/works/OL7720109W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL2389237A"}}], "type": {"key": "/type/work"}, "revision": 2}