{"last_modified": {"type": "/type/datetime", "value": "2010-12-05T08:03:43.142061"}, "title": "Soziale Integration und Leistungsdifferenzierung", "created": {"type": "/type/datetime", "value": "2009-12-10T19:52:16.458673"}, "subjects": ["Ability grouping in education", "Academic achievement", "Social interaction"], "latest_revision": 2, "key": "/works/OL6853341W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL1880051A"}}], "type": {"key": "/type/work"}, "revision": 2}