ETRI JOURNAL, vol. 29, no. 5, page. 655 - 666, 2007-10
IEEE TRANSACTIONS ON CONSUMER ELECTRONICS, vol. 53, no. 2, page. 519 - 527, 2007-05
JOURNAL OF DYNAMIC SYSTEMS MEASUREMENT AND CONTROL-TRANSACTIONS OF THE ASME, vol. 129, no. 3, page. 262 - 274, 2007-05
INTELLIGENT AUTOMATION AND SOFT COMPUTING, vol. 13, no. 3, page. 319 - 336, 2007-01