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다국어입력
1
Ji Hyang Park, Kil To Chong, Nikolaos Kazantzis,, | 대한기계학회 | 2004 ,
2
Ki Hong Im, Dongkyoung Chwa, Jin Young Choi, | The Korean Institute of Electrical Eng. | 2006 ,
3
4
Hao Zhi and Jiahao Lin (China), | 국제구조공학회 | 2000 ,