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JOURNAL OF ORGANIC CHEMISTRY, vol. 64, no. 14, page. 5036 - 5041, 1999-07-09
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, vol. 37, no. 13, page. 2013 - 2026, 1999-07-01
BULLETIN OF THE KOREAN CHEMICAL SOCIETY, vol. 20, no. 3, page. 273 - 275, 1999-03-20