参考文献

Wipf, Peter; Uto, Yoshikazu; Yoshimura, Seiji Chemistry - A European Journal, 2002, vol. 8, # 7 p. 1670 - 1681 doi: 10.1002/1521-3765(20020402)8:7<1670::AID-CHEM1670>3.0.CO;2-4