Maier, Guenther; Reisenauer, Hans Peter; Jung, Joerg; Pacl, Harald; Egenolf, Heiko
European Journal of Organic Chemistry, 1998 , # 7 p. 1297 - 1305

Becerra, Rosa; Frey, H. Monty; Mason, Ben P.; Walsh, Robin
Journal of the Chemical Society, Faraday Transactions, 1993 , vol. 89, # 3 p. 411 - 418