1. L. S. Strizhko, Metallurgy of Gold and Silver (MISIS, Moscow, 2001) [in Russian].
2. I. N. Maslenitskii and L. V. Chugaev, Metallurgy of Gold and Silver (Metallurgiya, Moscow, 1987) [in Russian].
3. M. A. Meretukov and A. M. Orlov, Metallurgy of Noble Metals. Foreign Experience (Metallurgiya, Moscow, 1991) [in Russian].
4. V. V. Lodeishchikov, Technology of Gold and Silver Extraction form Persistent Ores (Irgiridmet, Irkutsk, 1999) [in Russian].
5. C. Abbruzzese, P. Fornari, R. Massidda, et al., Hydrometallurgy 39, 265 (1995).