by Im, Kwang-Hee, Hsu, David K., Song, Sung-Jin, Park, Je-Woung, Sim, Jae-Ki, Yang, In Young
Published in Journal of mechanical science and technology (2004)

by 조호균, Ho Kyun Cho, 김정환, Jung Hwan Kim, 심재기, Jae Ki Shirn
Published in Daihan angwa haghoi jabji (15.05.1998)

by 변도석, Do Seok Byon, 송철화, Cheol Hwa Song, 심재기, Jae Ki Shim, 신경환, Kyung Hwan Shyn
Published in Daihan angwa haghoi jabji (15.03.1996)

by 심재기, Jae Ki Shirn, 조호균, Ho Kyun Cho
Published in Daihan angwa haghoi jabji (15.10.1998)

by 신경환, Kyung Hwan Shyn, 심재기, Jae Ki Shim, 신승환, Seung Hwan Shin, 박상우, Sang Woo Park
Published in Daihan angwa haghoi jabji (15.02.1999)