Takashi Takeuchi Shinji Mikami Hyeokjong Lee Hiroshi Kawaguchi Chikara Ohta Masahiko Yoshimoto A 433-MHz Rail-to-Rail Voltage Amplifier with Carrier Sensing Function for Wireless Sensor Networks. 815-821 2009 92-C IEICE Transactions 6 http://search.ieice.org/bin/summary.php?id=e92-c_6_815&category=C&year=2009&lang=E&abst= db/journals/ieicet/ieicet92c.html#TakeuchiMLKOY09