XXIV International Symposium on Macrocyclic Chemistry, 1999-07-18
INSA-KOSEF Joint Seminar, page. 13, 1998-07-01
Gordon Research Conference (Organic Reactions and Processes), 1997-08-01
EUCHEM Conference, 1995-01-01
7th Kor.-Jap. Seminar & 13th Symposium on Organic Chemistry, 1994-01-01