Harrison, Charles R.; Hodge, Philip; Khan, Naeem
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1980 , p. 1592 - 1594

Tetrahedron, , vol. 53, # 6 p. 2163 - 2176

Harrison, Charles R.; Hodge, Philip; Khan, Naeem
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1980 , p. 1592 - 1594