1. Campbell, M.J.M., Coord. Chem. Rev., 1975, no. 15, p. 279.
2. Padhye, S., Coord. Chem. Rev., 1985, no. 63, p. 127.
3. Kiselev, L.A., Zh. Vses. Khim. O-va im. D.I. Mendeleeva, 1985, vol. 20, no. 3, p. 288.
4. Lobana, T.S., Sharma, R., Bawa, G., and Khanna, S., Coord. Chem. Rev., 2009, no. 253, p. 977.
5. Garoufis, A., Hadjikakou, S.K., and Hadjiliadis, N., Coord. Chem. Rev., 2009, no. 253, p. 1384.