{"first_sentence": {"type": "/type/text", "value": "Any mathematical model sets some correspondence between two kinds of objects."}, "physical_format": "Hardcover", "subtitle": "Theory and Applications (Mathematics and Its Applications)", "last_modified": {"type": "/type/datetime", "value": "2008-04-29 15:03:11.581851"}, "weight": "1.4 pounds", "languages": [{"key": "/l/eng"}], "publishers": ["Springer"], "number_of_pages": 268, "isbn_13": ["9780792330738"], "id": 10604843, "edition_name": "1 edition", "isbn_10": ["0792330730"], "publish_date": "September 30, 1994", "key": "/b/OL7807605M", "authors": [{"key": "/a/OL2783937A"}, {"key": "/a/OL2783938A"}], "title": "Ill-Posed Problems", "type": {"key": "/type/edition"}, "subjects": ["Calculus & mathematical analysis", "Numerical analysis", "Partial Differential Equations", "Improperly posed problems", "Mathematics", "Number Systems", "Science/Mathematics", "Iterative methods (Mathematics", "Chemistry - General", "Differential Equations - Partial Differential Equations", "Mathematics / Number Systems", "Differential equations, Partia", "Approximation theory", "Differential equations, Partial", "Iterative methods (Mathematics)"], "physical_dimensions": "10 x 7 x 1 inches", "revision": 1}