1. R. A. Alshanov, Kazakhstan in the World Mineral Market: Problems and Their Solution [in Russian], Dauir (2004).
2. A. N. Zagorodnyaya, Z. S. Abisheva, and T. N. Bukurov, “Distribution of rhenium and osmium for copper sulfide raw material treatment products,” Tsvet. Met., No. 9, 47–50 (1997).
3. A. N. Zagorodnyaya, Z. S. Abisheva, and L. Ya. Agapova, “Technology for preparing ammonium perrhenate, rhennic acid, and osmium-187 isotope from nonferrous metallurgy technogenic formations,” Proc. Internat. Sci.-Pract Conf. “Effective technology for producing nonferrous rare and precious metals,” Almaty (2018).
4. T. N. Bukurov, M. S. Abaidil’dinov, and Z, N. Abisheva, “Copper production lead slurries — source for preparing rare metals,” KIMS, No. 2, 69–72 (2000).
5. Pat. CN №104404277 (A). Method for Strengthened Leaching Of Rhenium — Rich Slag and Rhenium Leaching Solution, 2015-03-11 p.