参考文献

Davies, Stephen G.; Rodriguez-Solla, Humberto; Tamayo, Juan A.; Cowley, Andrew R.; Concellon, Carmen; Garner, A. Christopher; Parkes, Alastair L.; Smith, Andrew D. Organic and Biomolecular Chemistry, 2005 , vol. 3, # 8 p. 1435 - 1447