IEICE TRANSACTIONS ON ELECTRONICS, vol. E90-C, no. 11, page. 2100 - 2104, 2007-11
IEEE TRANSACTIONS ON CONSUMER ELECTRONICS, vol. 53, no. 4, page. 1759 - 1767, 2007-11
INTEGRATION-THE VLSI JOURNAL, vol. 40, no. 2, page. 62 - 73, 2007-02
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES, vol. E90-A, no. 1, page. 234 - 240, 2007-01