{"last_modified": {"type": "/type/datetime", "value": "2010-12-06T06:26:18.218208"}, "title": "Tutorial exercises in trigonometry", "created": {"type": "/type/datetime", "value": "2009-12-10T21:53:41.014665"}, "subjects": ["Problems, exercises", "Trigonometry"], "latest_revision": 2, "key": "/works/OL7790420W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL2456009A"}}], "type": {"key": "/type/work"}, "revision": 2}