M.C. Fedorov, senior staff scientist; Prof. L.Sh. Tsemekhman, Head of Pyromet.Lab., e-mail: LST@nickel.spb.ru, OOO Gipronickel Institute; Yu.A. Provalov, ZAO Integrated Metallurgical Technologies.

1. Non-ferrous Metallurgy of Zaire: review. – CNIIE-ICM, 1982. P. 43–44
2. J. P Shein, N. V. Gudima. Metallurgist’ concise reference-book on non-ferrous metals. – M.: Metallurgia, 1964. P. 192-193.
3. Cobalt News. 1997, July. P. 11-14.
4. Mining Journal. 1977. Vol.328, N 8145. P.110.
5. Patent Application 2007122923 RF. Method of Treatment of Oxidised Copper-Cobalt Feed to Produce Blister Copper Cobalt-based Alloy; applicant – OOO Gipronickel Institute; Application date: 18.06.07.
6. I. T. Syrvalin, O. A. Esin. // Physical Chemistry Journal. 1952, V.26, №3. P.371-376