Law, Kam Wah; Lai, Ting-Fong; Sammes, Michael P.; Katritzky, Alan R.; Mak, Thomas C.W.
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1984 , p. 111 - 118
Lash, Timothy D.; Bladel, Karla A.; Shiner, Craig M.; Zajeski, Donna L.; Balasubramaniam, Rajiv P.
Journal of Organic Chemistry, 1992 , vol. 57, # 18 p. 4809 - 4820