1. Spear, K.E, Phase Behaviour and Related Properties of Rare-Earth Borides, Phase Diagrams, Materials Science, and Technology, vol. 4: The Use of Phase Diagrams in Technical Materials, Alper, A.M., Ed., 1976, pp. 91–159.
2. Paderno, Yu.B. and Konovalova, E.S., Valence of Metals and Properties of Their Hexaboride Phases, 8-oi Mezhdunarodnyi simpozium po boru, boridam, nitridam i rodstvennym soedineniyam (8th Int. Symp. on Boron, Borides, Nitrides, and Related Compounds), Tbilisi, 1984, pp. 64–65.
3. Nickerson, J.C., White, R.M., Lee, K.N., et al., Physical Properties of SmB6, Phys. Rev. B: Solid State, 1971, vol. 3, no. 6, pp. 2030–2042.
4. Bat’ko, I., Bat’kova, M., Flachbart, K., et al., Electrical Resistivity of Doped EuB6 down to 50 mK, J. Magn. Magn. Mater., 1995, vols. 140–144, pp. 1177–1178.
5. Golikova, O.A., Icosahedral Borides and Amorphous Boron, Fiz. Tekh. Poluprovodn. (S.-Peterburg), 1992, vol. 26, no. 9, pp. 1604–1611.