Volkov, A. I., U. A. Kologrieva, natoly I. Kovalev, D. L. Wainshtein, P. S. Chizhov, and I. F. Seregina. “Physico-Chemical Foundation of Sludge Processing Hydrometallurgical Production of Vanadium Pentoxide. Investigation of Forms of Vanadium Compounds”. KnE Materials Science, Vol. 6, no. 1, Dec. 2020, pp. 299–303, doi:10.18502/kms.v6i1.8094.