대한화학회 제 84회 연회, page. 313, 1999-10-22
대한화학회 제 83회 연회, page. 286, 1999-04-24
The Ninth Korea-Japan Seminar on Organic Chemistry, page. 29 - 34, 1998-11-01
The 9th CBM International Symposium(CBM-IFOC Joint Symposium), page. 23, 1998-11-01
Mini-Symposium on Organic Synthesis, 1998-11-01
The 82nd Annual Meeting (Korean Chemical Society), page. 428, 1998-10-01
The 82nd Annual Meeting (Korean Chemical Society), page. 428, 1998-10-01
The 8th CBM international Symposium, 1997-11-01
The 80th Annual Meeting(Korean Chemical Society), 1997-10-01
The 80th Annual Meeting (Korean Chemical Society), 1997-10-01
XXII International Symposium on Macrocyclic Chemistry, 1997-08-01
The 75th Annual Meeting of Korean Chemical Society, 1995-01-01
The 76th Annual Meeting of Korean Chemical Society, 1995-01-01
the 76th Annual Meeting of Korean Chemical Society, 1995-01-01
The 76th Annual Meeting of Korean Chemical society, 1995-01-01
The 75th Annual Meeting of Korean Chemical Society, 1995-01-01