1. X. Wang, X.M. Zhang, H.X. Liu, Polyhedron 14 (1995) 293.
2. X. Wang, X.M. Zhang, H.X. Liu, Trans. Met. Chem. 19 (1994) 611.
3. X. Zhang, H.Z. You, Polyhedron 15 (1996) 1793.
4. G.A. Kolawole, K.S. Patel, J. Chem. Soc., Dalton Trans. (1981) 1241.
5. S. Mohebbi, D.M. Boghaei, A.H. Sarvestani, A. Salimi, Appl. Catal. A: Gen. 278 (2005) 263.