Choi, Won Jun; Moon, Hyung Ryong; Kim, Hea Ok; Ko, Young Mi; Kim, Hye Jin; Lee, Jeong A.; Lee, Kang Man; Yun, Mi Kyung; Shin, Dae Hong; Chun, Moon Woo; Sheen, Yhun Y.; Kim, Kilhyoun; Jeong, Lak Shin Nucleosides, Nucleotides and Nucleic Acids, 2005, vol. 24, # 5-7 p. 611 - 613 doi: 10.1081/NCN-200061832