参考文献

Choi, Hyeong-Wook; Choi, Bo Seung; Chang, Jay Hyok; Lee, Kyu Woong; Nam, Do Hyun; Kim, Young Keun; Lee, Jae Hoon; Heo, Taeho; Shin, Hyunik; Kim, No-Soo Synlett, 2005 , # 12 art. no. U12805ST, p. 1942 - 1944