1. Dorer, B. et al, Organometallics, 1994, 13, 3868 (synth, ir, ms, crest struct)
2. Weng, W. et al, Organometallics, 1993, 12, 1537 (synth, ir, epr, ms, cryst struct)
3. Buijink, J.-K.F. et al, Organometallics, 1993, 12, 2004 (synth, ir, pmr, cmr, V-51 nmr)
4. Janik, T.S. et al, Organometallics, 1993, 12, 1682 (synth, ir, pmr, crest struct)
5. Blunden, R.B. et al, Organometallics, 1994, 13, 2917 (synth, ir, pmr, cmr, crust struct)