{"last_modified": {"type": "/type/datetime", "value": "2019-02-19T04:55:23.878357"}, "title": "Fiber optic communicationshandbook", "created": {"type": "/type/datetime", "value": "2019-02-19T04:55:23.878357"}, "covers": [4032576], "subjects": ["Fiber optics", "Optical communications"], "latest_revision": 1, "key": "/works/OL19024495W", "type": {"key": "/type/work"}, "revision": 1}