Akcil А., Karshigina, Z., Bochevskaya, Y. and Abisheva, Z. 2018. Conditions of nitric acid treatment of phosphorus slag for rems recovery and production of precipitated silicon dioxide. Kompleksnoe Ispolzovanie Mineralnogo Syra = Complex use of mineral resources. 305, 2 (May 2018), 28–38. DOI:https://doi.org/10.31643/2018/6445.4.