Coyle, Susan; Hallett, Allan; Munns, Michael S.; Young, Geoffrey T.
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1981 , p. 522 - 528
Baldwin, Jack E.; Adlington, Robert M.; Bottaro, Jeffrey C.; Kolhe, Jayant N.; Newington, Ian M.; Perry, Matthew W. D.
Tetrahedron, 1986 , vol. 42, # 15 p. 4235 - 4246