1. Adams, R.D. and Kwon, O.-S., J. Cluster Sci., 2003, vol. 14, p. 367.
2. Adams, R.D. and Kwon, O.-S., Inorg. Chem., 2003, vol. 42, p. 6175.
3. Pasynskii, A.A., Semenova, N.I., Torubaev, Yu.V., and Lysenko, K.A., Russ. J. Inorg. Chem., 2003, vol. 48, no. 8, p. 1178.
4. Pasynskii, A.A., Semenova, N.I., Torubaev, Yu.V., et al., Izv. Akad. Nauk, Ser. Khim., 2003, vol. 52, no. 4, p. 896.
5. Adams, R.D., Captain, B., Kwon, O.-S., and Miao, S., Inorg. Chem., 2003, vol. 42, p. 3356.