参考文献

Sevenard, Dmitri V.; Vorobyev, Mikhail; Sosnovskikh, Vyacheslav Ya.; Wessel, Helma; Kazakova, Olesya; Vogel, Vera; Shevchenko, Nikolay E.; Nenajdenko, Valentine G.; Lork, Enno; Roeschenthaler, Gerd-Volker Tetrahedron, 2009 , vol. 65, # 36 p. 7538 - 7552