{"languages": [{"key": "/l/eng"}], "last_modified": {"type": "/type/datetime", "value": "2008-04-29 13:35:46.87638"}, "publishers": ["Springer"], "number_of_pages": 356, "isbn_13": ["9780387283944"], "isbn_10": ["0387283943"], "publish_date": "February 16, 2006", "key": "/b/OL7445070M", "authors": [{"key": "/a/OL538096A"}], "title": "Duality for Nonconvex Approximation and Optimization (CMS Books in Mathematics)", "type": {"key": "/type/edition"}, "id": 10136520, "revision": 1}