1. ARABEY, B.G., GORYACHEV, YU.M., KOVENSKAYA, B.A.: Ob electronnom strojenii tetraboridov RZM yttrijevcj grouppy. J. Exp. Teoret. Chim. 10, 1012–1016 (1974)
2. ARIA, R.M., MOROSOVA, M.P., SEMENOV, G.A., RYBAKOVA, G.A.: Mg-B sistema i opredelenije entalpii obrazovaniya Mg-Bχ J. Phys. Chim. 45, 181–182 (1971)
3. BILTZ, H.: Über Elektronenzuständen von Hartstoffen mit Natrium-Chlorid-Struktur. Z.f. Physik 153, 338–358 (1958)
4. BLUM, P., BERTAUT, F.: To the investigation of borides with augmented contents of boron. Acta Cryst. 7, 81–86 (1954)
5. BUSCHOW, K.H.J., CREYGHTON, J.H.N.: Magnetic properties of rare earth tetraborides. J. Chem. Phys. 57, 3910–3916 (1972)