Ultarakova, A.A., Z.B. Karshyga, N.G. Lokhova, A.M. Yessengaziyev, and P.C. Burns. 2022. “Studies for Hydrometallurgical Processing of Titanium-Magnesium Production Sludge With Niobium Extraction in Solution”. Kompleksnoe Ispolzovanie Mineralnogo Syra = Complex Use of Mineral Resources 325 (2):53-61. https://doi.org/10.31643/2023/6445.18.