S. V. Drogobuzhskaya, A. A. Shirokaya, and S. A. Solov’ev, “SORPTION EXTRACTION OF PLATINUM METALS FROM CHLORIDE – SULFATE AND SULFATE ACIDIC SOLUTIONS BY POLYACRYLONITRILE FIBERS FIBAN”, IVUZKKT, vol. 62, no. 11, pp. 117-125, Nov. 2019.