1. Person's Handbook of Crystallographic Data for Intermetallic Phases, American Society for Metals, Metals Park, Oh 44073, vol. 2-3, 1985.
2. J. Emsley, in: The Elements. Second edition, Clarendon Press, Oxford, 1991.
3. Svoistva elementov (In Russian). M.E. Drits, Metallurgia, 1985.
4. Physicheskie velichiny (In Russian). I.S. Grigor'ev, E.Z. Melihov, Moscow, Energoatomizdat, 1991.