{"isbn_13": ["9780471451303"], "subtitle": "Practical Applications to the Operation and Markets of the Electric Power Industry (IEEE Press Series on Power Engineering)", "last_modified": {"type": "/type/datetime", "value": "2008-04-29 13:35:46.87638"}, "languages": [{"key": "/l/eng"}], "publishers": ["Wiley-IEEE Press"], "number_of_pages": 360, "first_sentence": {"type": "/type/text", "value": "The mathematics related to optimization is not new."}, "isbn_10": ["0471451304"], "publish_date": "September 22, 2003", "key": "/b/OL7617467M", "authors": [{"key": "/a/OL2739213A"}], "title": "Optimization Principles", "type": {"key": "/type/edition"}, "id": 10368675, "revision": 1}