1. Maizel, A., Leonhardt, G., and Sargan, R., X-Ray Spectra and Chemical Bonds, Kiev: Naukova Dumka, 1980.
2. Mazalov, L.N., Yumatov, V.D., Murakhtanov, V.V., Gel’mukhanov, F.Kh., Dolenko, G.N., Gluskin, E.S., and Kondratenko, A.V., Rentgenovskie spektry molekul (X-ray Spectra of Molecules), Novosibirsk: Nauka, 1977.
3. Danilenko, T.N., Tatevosyan, M.M., and Vlasenko, V.G., J. Struct. Chem., 2012, vol. 53, no. 5, p. 876. doi 10.1134/S0022476612050071
4. Danilenko, T.N., Tatevosyan, M.M., and Vlasenko, V.G., Phys. Solid State, 2012, vol. 54, no. 10, p. 2100. doi 10.1134/S10637834121001
5. Danilenko, T.N., Vlasenko, V.G., and Tatevosyan, M.M., Phys. Solid State, 2013, vol. 55, no. 12, p. 2582. doi 10.1134/S10637834131200