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
,
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