전자공학회논문지, vol. 26, no. 11, page. 1658 - 1665, 1989-01
전자공학회지, vol. 26, no. 3, page. 40 - 47, 1999-03
전자공학회지, vol. 26, no. 3, page. 40 - 47, 1999-01