Dancey, Keith P.; Henrick, Kim; Judd, Patricia M.; Owston, Philip G.; Peters, Roger; et al.
Journal of the American Chemical Society, 1981 , vol. 103, # 16 p. 4952 - 4954

Henrick, Kim; Judd, Patricia M.; Owston, Philip G.; Peters, Roger; Tasker, Peter A.; Turner, Ralph W.
Journal of the Chemical Society, Chemical Communications, 1983 , # 21 p. 1253 - 1254