{"created": {"type": "/type/datetime", "value": "2009-12-10T21:08:09.969491"}, "subjects": ["Electrical engineering", "Electric engineering"], "latest_revision": 4, "key": "/works/OL7426758W", "title": "Principles of electrical engineering", "authors": [{"type": "/type/author_role", "author": {"key": "/authors/OL2242501A"}}], "type": {"key": "/type/work"}, "last_modified": {"type": "/type/datetime", "value": "2020-08-11T09:28:06.483972"}, "covers": [5820192], "revision": 4}