Brandl, Melanie; Kozhushkov, Sergei I.; Zlatopolskiy, Boris D.; Alvermann, Petra; Geers, Bernadette; Zeeck, Axel; De Meijere, Armin European Journal of Organic Chemistry, 2005, # 1 p. 123 - 135 doi: 10.1002/ejoc.200400493