Corriu, Robert J.P.; Guerin, Christian; Henner, Bernard J.L.; Jolivet, Agnes
Journal of Organometallic Chemistry, 1997 , vol. 530, # 1-2 p. 39 - 48

Adams, Chris J.; Bruce, Michael I.; Horn, Ernst; Tiekink, Edward R. T.
Journal of the Chemical Society, Dalton Transactions: Inorganic Chemistry (1972-1999), 1992 , # 7 p. 1157 - 1164

Charrier,C. et al.
Bulletin de la Societe Chimique de France, 1966 , p. 1002 - 1011