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Man Yeong Ha., | 대한기계학회 | 2006 ,
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Hye-Jin Won, Young-Shin Pyo, Sang-Soon Oh, Yeong-, | Korean Institute of Metals and Materials | 2006 ,
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Yoonho Song, Seong Kon Lee, Hyoung Chan Kim, Weon, | 한국암반공학회 | 2003 ,
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Ho Yon Hwang,Yeong Kook Kim,Cheol Kim,Young-Doo K, | 대한기계학회 | 2003 ,