{"first_sentence": {"type": "/type/text", "value": "Of course this informal definition cannot be appreciated without further clarification of the crucial terms used therein."}, "physical_format": "Paperback", "last_modified": {"type": "/type/datetime", "value": "2008-04-30 09:38:13.731961"}, "weight": "5.6 ounces", "languages": [{"key": "/l/eng"}], "publishers": ["Springer"], "number_of_pages": 138, "isbn_13": ["9783540674559"], "id": 12706598, "edition_name": "1 edition", "isbn_10": ["3540674551"], "publish_date": "May 19, 2000", "key": "/b/OL9427900M", "authors": [{"key": "/a/OL2945217A"}], "title": "Challenges for Action Theories (Lecture Notes in Computer Science / Lecture Notes in Artificial Intelligence)", "type": {"key": "/type/edition"}, "subjects": ["Artificial intelligence", "System design", "Formal methods (Computer scien", "Formal Language Theory", "Computers", "Computers - Languages / Programming", "Science/Mathematics", "Programming - Systems Analysis & Design", "Formal methods (Computer science)", "Artificial Intelligence - General", "General", "AI-Logic", "Computers / Artificial Intelligence", "Formal Logic", "action theories", "deduction", "formal methods", "frame problem", "Computer Science", "Computer Logic"], "physical_dimensions": "9 x 6.1 x 0.4 inches", "revision": 1}