{"isbn_13": ["9780471350521"], "last_modified": {"type": "/type/datetime", "value": "2008-04-29 13:35:46.87638"}, "languages": [{"key": "/l/eng"}], "publishers": ["Wiley-Interscience"], "number_of_pages": 340, "first_sentence": {"type": "/type/text", "value": "The design of radio frequency (RF) circuits borrows from methods used in low-frequency audio circuits as well as from methods used in design of microwave circuits."}, "isbn_10": ["0471350524"], "publish_date": "February 23, 2001", "key": "/b/OL7615543M", "authors": [{"key": "/a/OL1345954A"}, {"key": "/a/OL2738239A"}], "title": "Radio Frequency Circuit Design", "type": {"key": "/type/edition"}, "id": 10365715, "revision": 1}