Coombes, Robert G.; Diggle, Andrew W.; Kempsell, Stewart P.
Tetrahedron Letters, 1994 , vol. 35, # 34 p. 6373 - 6376

Ridd, John H.; Trevellick, Susan; Sandall, John P. B.
Journal of the Chemical Society, Perkin Transactions 2: Physical Organic Chemistry (1972-1999), 1992 , # 9 p. 1535 - 1540

Ridd, John H.; Sandall, John P. B.; Trevellick, Susan
Journal of the Chemical Society, Chemical Communications, 1988 , # 17 p. 1195 - 1196