{"title": "Electroacoustics", "subjects": ["Electro-acoustics", "Electroacoustic transducers", "Microphone", "Loudspeakers", "Radio waves", "Electromagnetic waves"], "key": "/works/OL6699093W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL1811452A"}}], "type": {"key": "/type/work"}, "covers": [12597667], "latest_revision": 9, "revision": 9, "created": {"type": "/type/datetime", "value": "2009-12-10T19:35:22.390704"}, "last_modified": {"type": "/type/datetime", "value": "2022-01-31T04:53:47.699940"}}