Moore, Darren L.; Taylor, Mark P.; Timms, Peter L.
Journal of the Chemical Society, Dalton Transactions: Inorganic Chemistry (1972-1999), 2000 , # 16 p. 2673 - 2678

Mitzel, Norbert W.
Zeitschrift fur Naturforschung - Section B Journal of Chemical Sciences, 2003 , vol. 58, # 8 p. 759 - 763

Carleer, Robert; Anteunis, Marc J. O.
Organic Magnetic Resonance, 1980 , vol. 13, # 4 p. 253 - 258