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다국어입력
1
Hak Sung Lee, Jung Ho Suh, | 한국화학공학회 | 2001 ,
2
Hak Sung Lee, Bohumil Volesky, | The Korean Environmental Sciences Societ | 1998 ,
3
Hak Sung Lee, Young Tae Kim, | The Korean Environmental Sciences Societ | 1998 ,