Christ, William J.; McGuinness, Pamela D.; Asano, Osamu; Wang, Yuan; Mullarkey, Maureen A.; Perez, Michel; Hawkins, Lynn D.; Blythe, Todd A.; Dubuc, Gloria R.; Robidoux, Andrea L. Journal of the American Chemical Society, 1994 , vol. 116, # 8 p. 3637 - 3638