Colvin, Ernest W.; Robertson, Alan D.; Seebach, Dieter; Beck, Albert K.
Journal of the Chemical Society, Chemical Communications, 1981 , # 18 p. 952 - 953
Harder, Sjoerd; Boersma, Jaap; Brandsma, Lambert; Mier, Guido P. M. van; Kanters, Jan A.
Journal of Organometallic Chemistry, 1989 , vol. 364, p. 1 - 16