{"type": {"key": "/type/work"}, "title": "System der musikalischen Akustik", "subjects": ["Music", "Acoustics and physics"], "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL1948439A"}}], "key": "/works/OL43936596W", "latest_revision": 1, "revision": 1, "created": {"type": "/type/datetime", "value": "2025-08-24T05:21:56.013193"}, "last_modified": {"type": "/type/datetime", "value": "2025-08-24T05:21:56.013193"}}