Baigenzhenov О.S., Toishybek А.М., Khabiyev А.Т., I.O. Aimbetova, and Dagubayeva А.Т. “Recovery of Niobium from Wastes Generated in Titanium Production by Cation Exchange Sorbents”. Kompleksnoe Ispolzovanie Mineralnogo Syra = Complex use of mineral resources 318, no. 3 (August 17, 2021): 97–103. Accessed November 22, 2024. http://kims-imio.com/index.php/main/article/view/94.