参考文献

Waechtler, Heike; Fuentes, Dilver Pena; Michalik, Dirk; Koeckerling, Martin; Villinger, Alexander; Kragl, Udo; Cedeno, Quirino Arias; Vogel, Christian Synthesis, 2011, # 19 p. 3099 - 3108 doi: 10.1055/s-0030-1260200