1. Pilcher, G.: in this volume,
2. Pilcher, G., Skinner, H.A., in: Chemistry of the Metal– Carbon Bond, Hartley, F.R., Patai, S. (editors). Wiley. 1982, pp. 43–75.
3. Lappert, M.F., Patil, D.S., Pedley, J.B.: J.C.S. Chem. Comm., 1975, pp. 830–831.
4. Connor, J.A.: Topics Curr. Chem., 1977, 71, pp. 71–110.
5. Adedeji, F.A., Connor, J.A,, Skinner, H.A., Galyer, L., Wilkinson, G.: J.C.S. Chem. Comm., 1976, pp. 159–160.