{"type": {"key": "/type/work"}, "title": "Verbandsstrukturen im Mathematikunterricht", "subjects": ["Lattice theory", "Study and teaching"], "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL14215676A"}}], "key": "/works/OL42237638W", "latest_revision": 1, "revision": 1, "created": {"type": "/type/datetime", "value": "2024-12-17T03:05:08.967981"}, "last_modified": {"type": "/type/datetime", "value": "2024-12-17T03:05:08.967981"}}