Stewart, David; McHattie, Gillian S.; Imrie, Corrie T.
Journal of Materials Chemistry, 1998 , vol. 8, # 1 p. 47 - 51

Altman, Ryan A.; Shafir, Alexandr; Choi, Alice; Lichtor, Phillip A.; Buchwald, Stephen L.
Journal of Organic Chemistry, 2008 , vol. 73, # 1 p. 284 - 286

Mitchell
Journal of the Chemical Society, 1937 , p. 1794