1. Atbashyan, E.M., Leizerovich, G.Ya., Lonskii, I.S., and Metelitsina, I.A., Tsvetn. Metall., 1962, no. 8, p. 25.
2. Barotitskav, F.I., Levina, L.K., and Mayants, A.D., Tsvetn. Metall., 1962, no. 8, p. 28.
3. Vishnyakov, I.A. and Kanukov, E.Kh., Tsvetn. Met., 1981, no. 7, p. 31.
4. Klushin, D.N., Serebrennikov, E.Ya., Besser, A.D. et al., Kipyashchii sloi v tsvetnoi metallurgii (Fluidized Bed in Nonferrous Metallurgy), Moscow: Metallurgiya, 1978.
5. Lakernik, M.M. and Pakhomova, G.N., Metallurgiya tsinka i kadmiya (Metallurgy of Zinc and Cadmium), Moscow: Metallurgiya, 1969.