参考文献

Valls, Nativitat; Vallribera, Merce; Font-Bardia, Merce; Solans, Xavier; Bonjoch, Josep Tetrahedron Asymmetry, 2003, vol. 14, # 10 p. 1241 - 1244 doi: 10.1016/S0957-4166(03)00170-8