1. N. N. Akinfiev and A. V. Zotov, “Thermodynamic description aqueous species in the system Cu–Ag–Au–S–O–H at temperatures of 0–600°C and pressures of 1–3000 Bar,” Geochem. Int. 48(7), 714–720 (2010).
2. A. G. Betekhtin, Mineralogy: A Textbook (KDU, Moscow, 2008) [in Russian]
3. M. V. Borisov and Yu. V. Shvarov, Thermodynamics of Geochemical Processes. A Textbook (MGU, Moscow, 1992) [in Russian].
4. V. A. Bronevoi, A. V. Zil’bermints, V. M. Lipin, and V. A. Tenyakov, “Average concentrations of chemical elements in bauxites,” Dokl. Akad. Nauk SSSR 270 (5), 1167–1170 (1983).
5. J. N. Butler, Ionic Equilibrium: a Mathematical Approach (Reading, Addison-Wesley, 1964).