by 김성철(Sung-Cheol Kim), 김경욱(Kyoung-Wook ), 우천희(Chun-Hee Woo)
Published in 전기학회 논문지 P권, 65(3) (2016)

by 김경욱, Kyoung Wook Kim, 김용환, Yong Whan Kim
Published in Daihan angwa haghoi jabji (30.10.1985)