参考文献

Tietze, Lutz F.; Wegner, Christoph; Wulff, Christian Chemistry - A European Journal, 1999, vol. 5, # 10 p. 2885 - 2889 doi: 10.1002/(SICI)1521-3765(19991001)5:10<2885::AID-CHEM2885>3.0.CO;2-8