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2. V. S. Alekseev, G. G. Morozov, and L. E. Antonenko, Development of a Processing Technology for Ores of the Keivy Deposit, in: New Trends in Ore Concentration [in Russian], Nauka, Moscow-Leningrad (1966).
3. V. S. Alekseev et al., “Concentration of large-concretion kynite ores of the Keivy series in heavy suspensions,” Tsyetnaya Metallurgiya, No. 7 (1966).
4. V. S. Alekseev, G. G. Morozov, and A. S. Romanov, Concentration of Kyanite Ore of the Chervurta Deposit, in: Concentration of Apatite, Vermiculite, and Perovskite Ores [in Russian], Nauka, Leningrad (1967).