Bonvin, Yannick; Callens, Emmanuel; Larrosa, Igor; Henderson, David A.; Oldham, James; Burton, Andrew J.; Barrett, Anthony G. M.
Organic Letters, 2005 , vol. 7, # 21 p. 4549 - 4552
Erdtman
Proceedings of the Royal Society of London, Series A: Mathematical, Physical and Engineering Sciences, 1934 , vol. 143, p. 196,197
Chem. Zentralbl., 1934 , vol. 105, # I p. 3054