{"isbn_13": ["9780387718316"], "last_modified": {"type": "/type/datetime", "value": "2008-04-29 13:35:46.87638"}, "languages": [{"key": "/l/eng"}], "publishers": ["Springer"], "number_of_pages": 980, "first_sentence": {"type": "/type/text", "value": "Let's begin by defining astrodynamics."}, "isbn_10": ["0387718311"], "publish_date": "May 22, 2007", "key": "/b/OL7447866M", "authors": [{"key": "/a/OL2635118A"}], "title": "Fundamentals of Astrodynamics and Applications (Space Technology Library) (Space Technology Library)", "type": {"key": "/type/edition"}, "id": 10141963, "revision": 1}