Han, Hee Oon; Koh, Jong Sung; Kim, Seung Hae; Park, Ok Ku; Kim, Kyoung-Hee; Jeon, Sang Kweon; Hur, Gwong-Cheung; Yim, Hyeon Joo; Kim, Geun Tae Bulletin of the Korean Chemical Society, 2012, vol. 33, # 6 p. 1979 - 1982 doi: 10.5012/bkcs.2012.33.6.1979