{"subjects": ["Telecommunication", "Telephone systems", "Pack transportation", "Data transmission systems", "Wireless communication systems", "Digital communications"], "key": "/works/OL9350825W", "title": "The Cable and Telecommunications Professionals' Reference, Volume 1", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL3394746A"}}], "type": {"key": "/type/work"}, "covers": [2339555], "latest_revision": 7, "revision": 7, "created": {"type": "/type/datetime", "value": "2009-12-11T00:20:17.033612"}, "last_modified": {"type": "/type/datetime", "value": "2024-10-06T10:09:34.469963"}}