参考文献

Xia, Jie; Alderfer, James L.; Piskorz, Conrad F.; Matta, Khushi L. Chemistry - A European Journal, 2001, vol. 7, # 2 p. 356 - 367 doi: 10.1002/1521-3765(20010119)7:2<356::AID-CHEM356>3.0.CO;2-E