1. Aroutiounian, V.M., Intern. Scientific J. Alternative Energy and Ecology, 2005, no. 3(23), p. 21.
2. Adamyan, A.Z., Adamyan, Z.N., et al., Alternative Energy and Ecology, 2006, no. 9(41), p. 45.
3. Aroutiounian, V.M., Intern. J. Hydrogen Energy, 2007, vol. 32, p. 1145.
4. Aroutiounian, V.M., Intern. Scientific J. Alternative Energy and Ecology, 2007, no. 3(47), p. 33.
5. Arakelyan, V.M., Martirosyan, Kh.S., et al., Phys. Stat. Sol. (c), 2007, vol. 4, p. 2059.