{"first_sentence": {"type": "/type/text", "value": "In order t,o understand the natural way in which differential equations occur in the study of evolutionary processes, we begin with some simple population growth models, that have also possible economic interpretations."}, "physical_format": "Hardcover", "last_modified": {"type": "/type/datetime", "value": "2008-04-29 15:03:11.581851"}, "weight": "1.6 pounds", "languages": [{"key": "/l/eng"}], "publishers": ["Springer"], "number_of_pages": 380, "isbn_13": ["9780792346753"], "id": 10606287, "edition_name": "1st edition", "isbn_10": ["0792346750"], "publish_date": "December 31, 1899", "key": "/b/OL7808454M", "authors": [{"key": "/a/OL1799946A"}, {"key": "/a/OL2784246A"}], "title": "Differential Equations, Discrete Systems and Control: Economic Models (Mathematical Modelling: Theory and Applications)", "type": {"key": "/type/edition"}, "subjects": ["Applied mathematics", "Economic theory & philosophy", "Linear Programming", "Differential equations, Linear", "Mathematical Models In Economics", "Business & Economics", "Business / Economics / Finance", "General", "Business/Economics", "Economics - General", "Discrete-time systems", "Differential Equations", "Business & Economics / Economics / General", "Mathematics-Differential Equations", "Mathematics-Linear Programming", "Econometrics", "Control theory"], "physical_dimensions": "9.4 x 6.4 x 1 inches", "revision": 1}