Jackson, Sharon; DeGrado, William; Dwivedi, Anil; Parthasarathy, Anju; Higley, Anne; Krywko, James; Rockwell, Arlene; Markwalder, Jay; Wells, Greg; Wexler, Ruth; Mousa, Shaker; Harlow, Richard Journal of the American Chemical Society, 1994 , vol. 116, # 8 p. 3220 - 3230