{"isbn_13": ["9780824774196"], "physical_format": "Paperback", "weight": "1.2 pounds", "languages": [{"key": "/l/eng"}], "publishers": ["CRC"], "number_of_pages": 274, "last_modified": {"type": "/type/datetime", "value": "2008-04-29 15:03:11.581851"}, "id": 11009957, "first_sentence": {"type": "/type/text", "value": "The method of harmonic balance is one of the more well known methods for apprximating the periodic solutions of non-linear ordinary differential equations."}, "isbn_10": ["0824774191"], "publish_date": "April 25, 1985", "key": "/b/OL8126061M", "authors": [{"key": "/a/OL2871171A"}], "title": "Analysis, Geometry, and Probability (Lecture Notes in Pure and Applied Mathematics)", "type": {"key": "/type/edition"}, "subjects": ["Calculus & mathematical analysis", "Probabilities", "Geometry", "Mathematics", "Science/Mathematics", "Applied", "Calculus", "Mathematics / Functional Analysis", "Congresses", "Mathematical Analysis"], "physical_dimensions": "9.8 x 7 x 0.6 inches", "revision": 1}