Zakhidov, A., G. Zhamanbayeva, and Yar-Mukhamedova Г. “Investigation of Degradation Processes in Perovskite under the Influence of External Factors”. Kompleksnoe Ispolzovanie Mineralnogo Syra = Complex Use of Mineral Resources, vol. 319, no. 4, Oct. 2021, pp. 19-24, doi:10.31643/2021/6445.36.