Al-Hassan, Saiba S.; Cameron, Robert J.; Curran, Adrian W. C.; Lyall, William J. S.; Nicholson, Sydney H.; et al.
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1985 , p. 1645 - 1660

Klein, Cheryl L.; Majeste, Richard J.; Luedtke, Alan E.; Ray, Warren J.; Stevens, Edwin D.; Timberlake, Jack W.
Journal of Organic Chemistry, 1984 , vol. 49, # 7 p. 1208 - 1211