{"languages": [{"key": "/l/eng"}], "physical_format": "Hardcover", "subtitle": "Multiple Characteristics Micro-Local Approach", "weight": "1.1 pounds", "publishers": ["John Wiley & Sons"], "number_of_pages": 398, "last_modified": {"type": "/type/datetime", "value": "2008-04-30 09:38:13.731961"}, "id": 12696988, "isbn_13": ["9783527401031"], "isbn_10": ["3527401032"], "publish_date": "December 1998", "key": "/b/OL9419959M", "authors": [{"key": "/a/OL182641A"}], "title": "The Cauchy Problem for Hyperbolic Operators", "type": {"key": "/type/edition"}, "subjects": ["Partial Differential Equations", "Mathematics", "Science/Mathematics", "Differential Equations - Partial Differential Equations", "Differential Equations"], "physical_dimensions": "11 x 8.4 x 0.5 inches", "revision": 1}