4Th International Conference on Heteroatom Chemistry, Date: JUL 30-AUG 04, 1995, Location: SEOUL, SOUTH KOREA, Patrocinadores: Int Union Pure & Appl Chem, Organic Chem Div, Korean Chem Soc, Korean Pharm Soc, Korean Sci & Engn Fdn, Korean Federat Sci & Tech Soc